Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 21/4 from 18/14

1st number: 1 4/14, 2nd number: 5 1/4

18/14 - 21/4 is -111/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 4 is 28
  2. For the 1st fraction, since 14 × 2 = 28,
    18/14 = 18 × 2/14 × 2 = 36/28
  3. Likewise, for the 2nd fraction, since 4 × 7 = 28,
    21/4 = 21 × 7/4 × 7 = 147/28
  4. Subtract the two fractions:
    36/28 - 147/28 = 36 - 147/28 = -111/28

Related:

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

© everydaycalculation.com