Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 7/21 and 18/28

7/21 + 18/28 is 41/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 28 is 84
  2. For the 1st fraction, since 21 × 4 = 84,
    7/21 = 7 × 4/21 × 4 = 28/84
  3. Likewise, for the 2nd fraction, since 28 × 3 = 84,
    18/28 = 18 × 3/28 × 3 = 54/84
  4. Add the two fractions:
    28/84 + 54/84 = 28 + 54/84 = 82/84
  5. After reducing the fraction, the answer is 41/42

Related:

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

© everydaycalculation.com