Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 21/5 and 3/7

1st number: 4 1/5, 2nd number: 3/7

21/5 is greater than 3/7

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 7 is 35

    Next, find the equivalent fraction of both fractional numbers with denominator 35
  2. For the 1st fraction, since 5 × 7 = 35,
    21/5 = 21 × 7/5 × 7 = 147/35
  3. Likewise, for the 2nd fraction, since 7 × 5 = 35,
    3/7 = 3 × 5/7 × 5 = 15/35
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 147/35 > 15/35 or 21/5 > 3/7

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com