Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 36/20 and 21/8

1st number: 1 16/20, 2nd number: 2 5/8

36/20 + 21/8 is 177/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 8 is 40
  2. For the 1st fraction, since 20 × 2 = 40,
    36/20 = 36 × 2/20 × 2 = 72/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    21/8 = 21 × 5/8 × 5 = 105/40
  4. Add the two fractions:
    72/40 + 105/40 = 72 + 105/40 = 177/40
  5. In mixed form: 417/40

Related:

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

© everydaycalculation.com