Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/5 and 8/28

1st number: 4 1/5, 2nd number: 8/28

21/5 + 8/28 is 157/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 28 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 5 × 28 = 140,
    21/5 = 21 × 28/5 × 28 = 588/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    8/28 = 8 × 5/28 × 5 = 40/140
  4. Add the two like fractions:
    588/140 + 40/140 = 588 + 40/140 = 628/140
  5. 628/140 simplified gives 157/35
  6. So, 21/5 + 8/28 = 157/35
    In mixed form: 417/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com