Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 8/9 from 28/40

28/40 - 8/9 is -17/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 9 is 360
  2. For the 1st fraction, since 40 × 9 = 360,
    28/40 = 28 × 9/40 × 9 = 252/360
  3. Likewise, for the 2nd fraction, since 9 × 40 = 360,
    8/9 = 8 × 40/9 × 40 = 320/360
  4. Subtract the two fractions:
    252/360 - 320/360 = 252 - 320/360 = -68/360
  5. After reducing the fraction, the answer is -17/90

Related:

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

© everydaycalculation.com