Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/7 and 20/8

1st number: 5/7, 2nd number: 2 4/8

5/7 + 20/8 is 45/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 8 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 7 × 8 = 56,
    5/7 = 5 × 8/7 × 8 = 40/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    20/8 = 20 × 7/8 × 7 = 140/56
  4. Add the two like fractions:
    40/56 + 140/56 = 40 + 140/56 = 180/56
  5. 180/56 simplified gives 45/14
  6. So, 5/7 + 20/8 = 45/14
    In mixed form: 33/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com