Adding and Subtracting Fractions Basics
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Questions and Answers

What is the first step in subtracting fractions with like denominators?

  • Rewrite fractions with a common denominator
  • Convert mixed numbers to improper fractions
  • Subtract the denominators
  • Subtract the numerators (correct)
  • How should fractions with unlike denominators be prepared for subtraction?

  • Find a common denominator (correct)
  • Convert the denominators to like denominators
  • Change mixed numbers to improper fractions
  • Subtract the numerators directly
  • In Example 1 of subtracting fractions with like denominators, what is the common denominator used?

  • 5
  • 8
  • 3
  • 6 (correct)
  • What should be done after subtracting the numerators when subtracting fractions with unlike denominators?

    <p>Write the new numerator over the denominator</p> Signup and view all the answers

    Why is it necessary to find a common denominator when subtracting fractions with unlike denominators?

    <p>To make them compatible for subtraction</p> Signup and view all the answers

    Which step ensures a fraction is expressed in its simplest form?

    <p>Putting the sum in lowest terms</p> Signup and view all the answers

    What is a common multiple of 4 and 5 that can be used as a common denominator?

    <p>20</p> Signup and view all the answers

    "What is the difference of $\frac{7}{8} - \frac{3}{4}$?"

    <p>$\frac{5}{8}$</p> Signup and view all the answers

    What is the first step when subtracting fractions with like denominators?

    <p>Subtract the numerators</p> Signup and view all the answers

    What should be done before subtracting the numerators when subtracting fractions with unlike denominators?

    <p>Find a common denominator</p> Signup and view all the answers

    In subtracting fractions with unlike denominators, when are fractions rewritten using a common denominator?

    <p>Before subtracting the numerators</p> Signup and view all the answers

    What does it mean to put a fraction in its lowest terms?

    <p>To reduce the fraction to its simplest form</p> Signup and view all the answers

    Why are like fractions important when subtracting fractions with unlike denominators?

    <p>To simplify the subtraction process</p> Signup and view all the answers

    What is the purpose of finding a common denominator when subtracting fractions with unlike denominators?

    <p>To make it possible to subtract the numerators</p> Signup and view all the answers

    In Example 2 of subtracting fractions with unlike denominators, what should be done after finding a common denominator?

    <p>Reduce both fractions to their lowest terms</p> Signup and view all the answers

    If $rac{9}{12}$ and $rac{15}{18}$ need to be subtracted, what should be done first?

    <p>Find a common denominator</p> Signup and view all the answers

    $rac{7}{9} - rac{4}{6}$, what is the first step in this subtraction problem?

    <p>$rac{7}{9}$ and $rac{4}{6}$ should be rewritten with a common denominator</p> Signup and view all the answers

    What is the correct process for putting a fraction in its lowest terms?

    <p>To reduce it by dividing both numerator and denominator by a common factor</p> Signup and view all the answers

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