Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Compare fractions

Compare 18/21 and 9/10

18/21 is smaller than 9/10

Steps for comparing fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 10 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 10 × 21 = 210,
    9/10 = 9 × 21/10 × 21 = 189/210
  4. Since the denominators are now the same, the fraction with the bigger numerator is the greater fraction
  5. 180/210 < 189/210 or 18/21 < 9/10

Related:

Use fraction calculator with our all-in-one calculator app: Download for Android, Download for iOS

© everydaycalculation.com