Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/80 and 12/15

72/80 + 12/15 is 17/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 15 is 240

    Next, find the equivalent fraction of both fractional numbers with denominator 240
  2. For the 1st fraction, since 80 × 3 = 240,
    72/80 = 72 × 3/80 × 3 = 216/240
  3. Likewise, for the 2nd fraction, since 15 × 16 = 240,
    12/15 = 12 × 16/15 × 16 = 192/240
  4. Add the two like fractions:
    216/240 + 192/240 = 216 + 192/240 = 408/240
  5. 408/240 simplified gives 17/10
  6. So, 72/80 + 12/15 = 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