Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/28 and 20/8

1st number: 1 17/28, 2nd number: 2 4/8

45/28 + 20/8 is 115/28.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 28 and 8 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 28 × 2 = 56,
    45/28 = 45 × 2/28 × 2 = 90/56
  3. Likewise, for the 2nd fraction, since 8 × 7 = 56,
    20/8 = 20 × 7/8 × 7 = 140/56
  4. Add the two like fractions:
    90/56 + 140/56 = 90 + 140/56 = 230/56
  5. 230/56 simplified gives 115/28
  6. So, 45/28 + 20/8 = 115/28
    In mixed form: 43/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com