Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 20/72 and 70/63

1st number: 20/72, 2nd number: 1 7/63

20/72 is smaller than 70/63

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 63 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    20/72 = 20 × 7/72 × 7 = 140/504
  3. Likewise, for the 2nd fraction, since 63 × 8 = 504,
    70/63 = 70 × 8/63 × 8 = 560/504
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 140/504 < 560/504 or 20/72 < 70/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com