Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Compare fractions

Compare 42/18 and 50/21

1st number: 2 6/18, 2nd number: 2 8/21

42/18 is smaller than 50/21

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 21 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    42/18 = 42 × 7/18 × 7 = 294/126
  3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
    50/21 = 50 × 6/21 × 6 = 300/126
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 294/126 < 300/126 or 42/18 < 50/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com