Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 28/21 and 28/49

1st number: 1 7/21, 2nd number: 28/49

28/21 + 28/49 is 40/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 49 is 147
  2. For the 1st fraction, since 21 × 7 = 147,
    28/21 = 28 × 7/21 × 7 = 196/147
  3. Likewise, for the 2nd fraction, since 49 × 3 = 147,
    28/49 = 28 × 3/49 × 3 = 84/147
  4. Add the two fractions:
    196/147 + 84/147 = 196 + 84/147 = 280/147
  5. After reducing the fraction, the answer is 40/21
  6. In mixed form: 119/21

MathStep (Works offline)

Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad

Related:

© everydaycalculation.com