Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 49/28 and 7/20

1st number: 1 21/28, 2nd number: 7/20

49/28 + 7/20 is 21/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 20 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 28 × 5 = 140,
    49/28 = 49 × 5/28 × 5 = 245/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    7/20 = 7 × 7/20 × 7 = 49/140
  4. Add the two like fractions:
    245/140 + 49/140 = 245 + 49/140 = 294/140
  5. 294/140 simplified gives 21/10
  6. So, 49/28 + 7/20 = 21/10
    In mixed form: 21/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com