Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 72/4 and 21/12

1st number: 18 0/4, 2nd number: 1 9/12

72/4 + 21/12 is 79/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 12 is 12
  2. For the 1st fraction, since 4 × 3 = 12,
    72/4 = 72 × 3/4 × 3 = 216/12
  3. Likewise, for the 2nd fraction, since 12 × 1 = 12,
    21/12 = 21 × 1/12 × 1 = 21/12
  4. Add the two fractions:
    216/12 + 21/12 = 216 + 21/12 = 237/12
  5. After reducing the fraction, the answer is 79/4
  6. In mixed form: 193/4

Related:

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

© everydaycalculation.com