Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Compare fractions

Compare 20/12 and 20/90

1st number: 1 8/12, 2nd number: 20/90

20/12 is greater than 20/90

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 90 is 180
  2. For the 1st fraction, since 12 × 15 = 180,
    20/12 = 20 × 15/12 × 15 = 300/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    20/90 = 20 × 2/90 × 2 = 40/180
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 300/180 > 40/180 or 20/12 > 20/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com