Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Compare fractions

Compare 20/9 and 84/42

1st number: 2 2/9, 2nd number: 2 0/42

20/9 is greater than 84/42

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 42 is 126
  2. For the 1st fraction, since 9 × 14 = 126,
    20/9 = 20 × 14/9 × 14 = 280/126
  3. Likewise, for the 2nd fraction, since 42 × 3 = 126,
    84/42 = 84 × 3/42 × 3 = 252/126
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 280/126 > 252/126 or 20/9 > 84/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com