Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 15/20 and 9/40

15/20 + 9/40 is 39/40.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 40 is 40
  2. For the 1st fraction, since 20 × 2 = 40,
    15/20 = 15 × 2/20 × 2 = 30/40
  3. Likewise, for the 2nd fraction, since 40 × 1 = 40,
    9/40 = 9 × 1/40 × 1 = 9/40
  4. Add the two fractions:
    30/40 + 9/40 = 30 + 9/40 = 39/40

Related:

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

© everydaycalculation.com