Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/70 and 72/56

1st number: 20/70, 2nd number: 1 16/56

20/70 + 72/56 is 11/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 56 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 70 × 4 = 280,
    20/70 = 20 × 4/70 × 4 = 80/280
  3. Likewise, for the 2nd fraction, since 56 × 5 = 280,
    72/56 = 72 × 5/56 × 5 = 360/280
  4. Add the two like fractions:
    80/280 + 360/280 = 80 + 360/280 = 440/280
  5. 440/280 simplified gives 11/7
  6. So, 20/70 + 72/56 = 11/7
    In mixed form: 14/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com