Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 1/8 from 7/21

7/21 - 1/8 is 5/24.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 8 is 168
  2. For the 1st fraction, since 21 × 8 = 168,
    7/21 = 7 × 8/21 × 8 = 56/168
  3. Likewise, for the 2nd fraction, since 8 × 21 = 168,
    1/8 = 1 × 21/8 × 21 = 21/168
  4. Subtract the two fractions:
    56/168 - 21/168 = 56 - 21/168 = 35/168
  5. After reducing the fraction, the answer is 5/24

Related:

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

© everydaycalculation.com