Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Compare fractions

Compare 21/15 and 2/18

1st number: 1 6/15, 2nd number: 2/18

21/15 is greater than 2/18

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90
  2. For the 1st fraction, since 15 × 6 = 90,
    21/15 = 21 × 6/15 × 6 = 126/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    2/18 = 2 × 5/18 × 5 = 10/90
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 126/90 > 10/90 or 21/15 > 2/18

MathStep (Works offline)

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

Related:

© everydaycalculation.com