Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 7/21 and 42/9

1st number: 7/21, 2nd number: 4 6/9

7/21 + 42/9 is 5/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 9 is 63
  2. For the 1st fraction, since 21 × 3 = 63,
    7/21 = 7 × 3/21 × 3 = 21/63
  3. Likewise, for the 2nd fraction, since 9 × 7 = 63,
    42/9 = 42 × 7/9 × 7 = 294/63
  4. Add the two fractions:
    21/63 + 294/63 = 21 + 294/63 = 315/63
  5. After reducing the fraction, the answer is 5/1

Related:

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

© everydaycalculation.com