Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Compare fractions

Compare 15/28 and 42/20

1st number: 15/28, 2nd number: 2 2/20

15/28 is smaller than 42/20

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 20 is 140
  2. For the 1st fraction, since 28 × 5 = 140,
    15/28 = 15 × 5/28 × 5 = 75/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    42/20 = 42 × 7/20 × 7 = 294/140
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 75/140 < 294/140 or 15/28 < 42/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com