Manhattan GMAT Fractions, Decimals & Percents (Guide 1) – Fifth Edition
A foundational guide to mastering essential Quant topics for the GMAT

Introduction
Manhattan GMAT Fractions, Decimals & Percents (Guide 1) – Fifth Edition is the first book in the Manhattan GMAT Strategy Guides series and serves as the foundation for success on the Quantitative section of the GMAT. Many GMAT questions—whether they appear in Problem Solving or Data Sufficiency—are built upon core concepts involving fractional relationships, decimal manipulation, and percentage operations.
This guide helps students rebuild and strengthen these fundamental skills through clear explanations, structured lessons, and powerful strategies that reflect the actual logic of the GMAT exam. Updated to align with The Official Guide for GMAT Review, 13th Edition, the book provides an accurate, relevant, and highly practical learning experience.
Publication Information
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Title: Manhattan GMAT Fractions, Decimals & Percents (Guide 1) – Fifth Edition
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Publisher: Manhattan GMAT / MG Prep, Inc.
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Series: Manhattan GMAT Strategy Guides
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Edition: Fifth Edition
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Format: PDF / Print
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Best for: GMAT learners who want to strengthen Quant fundamentals or target a 650–750+ score
Key Features
1. Clear explanations of foundational Quant concepts
This guide breaks down the core building blocks of the GMAT Quantitative section, including:
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Converting between fractions, decimals, and percents
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Understanding ratios and proportions
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Working with part–whole relationships
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Applying multipliers
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Percentage change and compound growth
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Estimation and numerical reasoning
These topics are essential because they appear frequently in more complex problems across algebra, word problems, and number properties.
2. Practical strategies for both Problem Solving and Data Sufficiency
Students learn how to apply these foundational skills to real GMAT questions through:
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Smart calculation shortcuts
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Techniques for avoiding common traps
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Logical evaluation of DS statements
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Alternative solution paths such as plugging in numbers
This approach not only improves accuracy but also helps students save valuable time during the exam.
3. Extensive practice problems with detailed solutions
Each chapter includes topic-specific drills to reinforce understanding, followed by mixed practice sets that simulate real GMAT difficulty.
All questions include step-by-step explanations that highlight:
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The reasoning behind the correct answer
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Efficient methods that reduce calculation time
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Pitfalls that lead many test-takers to choose incorrect options
These explanations are one of the Manhattan series’ strongest features.
4. Access to six full-length online GMAT practice exams
The original book purchase includes access to Manhattan’s full-length adaptive tests, known for their realism and accurate score prediction.
The analytics provided help students track progress, discover weaknesses, and plan targeted study sessions.
5. Updated for official GMAT guidelines
All content reflects current GMAT standards and aligns with the question types found in the 13th Edition Official Guide, ensuring relevance and exam accuracy.
Why This Book Is Highly Recommended
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Written by 99th-percentile GMAT instructors
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Provides a rock-solid foundation for all Quant topics
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Ideal for self-learners who need structured, easy-to-understand lessons
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Helps eliminate “silly mistakes” caused by weak fundamentals
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Builds the skills required for harder topics such as algebra, word problems, and number properties
For many students, mastering this guide results in immediate improvement in Quant performance.
Who Should Use This Guide?
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Students beginning their GMAT preparation
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Test-takers who struggle with basic arithmetic or number manipulation
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Learners aiming for a high Quant score
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Anyone completing the full Manhattan GMAT series
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Students who want a clear, methodical, and strategy-driven approach
Even advanced students benefit from strengthening these crucial fundamentals.
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