Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/28 and 48/70

20/28 + 48/70 is 7/5.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 70 is 140

    Next, find the equivalent fraction of both fractional numbers with denominator 140
  2. For the 1st fraction, since 28 × 5 = 140,
    20/28 = 20 × 5/28 × 5 = 100/140
  3. Likewise, for the 2nd fraction, since 70 × 2 = 140,
    48/70 = 48 × 2/70 × 2 = 96/140
  4. Add the two like fractions:
    100/140 + 96/140 = 100 + 96/140 = 196/140
  5. 196/140 simplified gives 7/5
  6. So, 20/28 + 48/70 = 7/5
    In mixed form: 12/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com