Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/20 and 72/28

1st number: 5/20, 2nd number: 2 16/28

5/20 + 72/28 is 79/28.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 20 × 7 = 140,
    5/20 = 5 × 7/20 × 7 = 35/140
  3. Likewise, for the 2nd fraction, since 28 × 5 = 140,
    72/28 = 72 × 5/28 × 5 = 360/140
  4. Add the two like fractions:
    35/140 + 360/140 = 35 + 360/140 = 395/140
  5. 395/140 simplified gives 79/28
  6. So, 5/20 + 72/28 = 79/28
    In mixed form: 223/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com