Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/4 and 21/56

1st number: 5 0/4, 2nd number: 21/56

20/4 + 21/56 is 43/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 56 is 56

    Next, find the equivalent fraction of both fractional numbers with denominator 56
  2. For the 1st fraction, since 4 × 14 = 56,
    20/4 = 20 × 14/4 × 14 = 280/56
  3. Likewise, for the 2nd fraction, since 56 × 1 = 56,
    21/56 = 21 × 1/56 × 1 = 21/56
  4. Add the two like fractions:
    280/56 + 21/56 = 280 + 21/56 = 301/56
  5. 301/56 simplified gives 43/8
  6. So, 20/4 + 21/56 = 43/8
    In mixed form: 53/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com