Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/20 and 40/56

18/20 + 40/56 is 113/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 56 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 20 × 14 = 280,
    18/20 = 18 × 14/20 × 14 = 252/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    40/56 = 40 × 5/56 × 5 = 200/280
  4. Add the two like fractions:
    252/280 + 200/280 = 252 + 200/280 = 452/280
  5. 452/280 simplified gives 113/70
  6. So, 18/20 + 40/56 = 113/70
    In mixed form: 143/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com