Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 15/4 and 5/7

1st number: 3 3/4, 2nd number: 5/7

15/4 + 5/7 is 125/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 7 is 28
  2. For the 1st fraction, since 4 × 7 = 28,
    15/4 = 15 × 7/4 × 7 = 105/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    5/7 = 5 × 4/7 × 4 = 20/28
  4. Add the two fractions:
    105/28 + 20/28 = 105 + 20/28 = 125/28
  5. In mixed form: 413/28

Related:

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

© everydaycalculation.com