Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/80 and 81/60

1st number: 28/80, 2nd number: 1 21/60

28/80 + 81/60 is 17/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 60 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    28/80 = 28 × 3/80 × 3 = 84/240
  3. Likewise, for the 2nd fraction, since 60 × 4 = 240,
    81/60 = 81 × 4/60 × 4 = 324/240
  4. Add the two like fractions:
    84/240 + 324/240 = 84 + 324/240 = 408/240
  5. 408/240 simplified gives 17/10
  6. So, 28/80 + 81/60 = 17/10
    In mixed form: 17/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com