Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 10/21 and 40/60

10/21 + 40/60 is 8/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    10/21 = 10 × 20/21 × 20 = 200/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    40/60 = 40 × 7/60 × 7 = 280/420
  4. Add the two fractions:
    200/420 + 280/420 = 200 + 280/420 = 480/420
  5. After reducing the fraction, the answer is 8/7
  6. In mixed form: 11/7

Related:

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

© everydaycalculation.com