Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/80 and 7/10

28/80 + 7/10 is 21/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 10 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 80 × 1 = 80,
    28/80 = 28 × 1/80 × 1 = 28/80
  3. Likewise, for the 2nd fraction, since 10 × 8 = 80,
    7/10 = 7 × 8/10 × 8 = 56/80
  4. Add the two like fractions:
    28/80 + 56/80 = 28 + 56/80 = 84/80
  5. 84/80 simplified gives 21/20
  6. So, 28/80 + 7/10 = 21/20
    In mixed form: 11/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com