Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Compare fractions

Compare 18/21 and 18/70

18/21 is greater than 18/70

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 70 is 210
  2. For the 1st fraction, since 21 × 10 = 210,
    18/21 = 18 × 10/21 × 10 = 180/210
  3. Likewise, for the 2nd fraction, since 70 × 3 = 210,
    18/70 = 18 × 3/70 × 3 = 54/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 180/210 > 54/210 or 18/21 > 18/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com