christopherbentley2000
christopherbentley2000 8h ago โ€ข 0 views

Test Questions on Rational Numbers: Prepare for Your 8th Grade Exam

Hey there, 8th graders! ๐Ÿ‘‹ Getting ready for your Rational Numbers exam? Don't stress! I've put together a quick study guide and a practice quiz to help you ace it. Let's dive in and make sure you're totally prepared! ๐Ÿค“
๐Ÿงฎ Mathematics

1 Answers

โœ… Best Answer
User Avatar
philliplawson2001 Dec 28, 2025

๐Ÿ“š Quick Study Guide

  • ๐Ÿ”ข Definition: Rational numbers are numbers that can be expressed as a fraction $\frac{p}{q}$, where $p$ and $q$ are integers and $q \neq 0$.
  • โž• Addition/Subtraction: To add or subtract rational numbers, they must have a common denominator. If $\frac{a}{c}$ and $\frac{b}{c}$ are rational numbers, then $\frac{a}{c} + \frac{b}{c} = \frac{a+b}{c}$ and $\frac{a}{c} - \frac{b}{c} = \frac{a-b}{c}$.
  • โœ–๏ธ Multiplication: To multiply rational numbers, multiply the numerators and the denominators: $\frac{a}{b} \times \frac{c}{d} = \frac{a \times c}{b \times d}$.
  • โž— Division: To divide rational numbers, multiply by the reciprocal of the divisor: $\frac{a}{b} \div \frac{c}{d} = \frac{a}{b} \times \frac{d}{c} = \frac{a \times d}{b \times c}$.
  • โš–๏ธ Properties: Rational numbers follow the commutative, associative, and distributive properties of real numbers.
  • ๐Ÿ’ฏ Decimal Representation: Rational numbers can be expressed as terminating or repeating decimals.

๐Ÿ“ Practice Quiz

  1. What is the result of $\frac{2}{5} + \frac{1}{5}$?
    1. $\frac{3}{10}$
    2. $\frac{2}{25}$
    3. $\frac{3}{5}$
    4. $\frac{1}{2}$
  2. What is the result of $\frac{3}{4} - \frac{1}{2}$?
    1. $\frac{2}{2}$
    2. $\frac{1}{4}$
    3. $\frac{2}{4}$
    4. $\frac{1}{8}$
  3. What is the result of $\frac{2}{3} \times \frac{3}{4}$?
    1. $\frac{5}{7}$
    2. $\frac{6}{12}$
    3. $\frac{1}{2}$
    4. $\frac{5}{12}$
  4. What is the result of $\frac{1}{2} \div \frac{1}{4}$?
    1. $\frac{1}{8}$
    2. $2$
    3. $\frac{1}{2}$
    4. $\frac{3}{4}$
  5. Which of the following is NOT a rational number?
    1. $0$
    2. $\sqrt{2}$
    3. $\frac{1}{3}$
    4. $-5$
  6. Convert $\frac{3}{8}$ to a decimal.
    1. $0.3$
    2. $0.375$
    3. $0.83$
    4. $2.67$
  7. Which fraction is equivalent to $0.75$?
    1. $\frac{1}{4}$
    2. $\frac{1}{2}$
    3. $\frac{2}{3}$
    4. $\frac{3}{4}$
Click to see Answers
  1. C
  2. B
  3. C
  4. B
  5. B
  6. B
  7. D

Join the discussion

Please log in to post your answer.

Log In

Earn 2 Points for answering. If your answer is selected as the best, you'll get +20 Points! ๐Ÿš€