Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 8/9 from 9/20

9/20 - 8/9 is -79/180.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 9 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    9/20 = 9 × 9/20 × 9 = 81/180
  3. Likewise, for the 2nd fraction, since 9 × 20 = 180,
    8/9 = 8 × 20/9 × 20 = 160/180
  4. Subtract the two fractions:
    81/180 - 160/180 = 81 - 160/180 = -79/180

Related:

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

© everydaycalculation.com