Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/8 and 12/72

1st number: 11 2/8, 2nd number: 12/72

90/8 + 12/72 is 137/12.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 72 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 8 × 9 = 72,
    90/8 = 90 × 9/8 × 9 = 810/72
  3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
    12/72 = 12 × 1/72 × 1 = 12/72
  4. Add the two like fractions:
    810/72 + 12/72 = 810 + 12/72 = 822/72
  5. 822/72 simplified gives 137/12
  6. So, 90/8 + 12/72 = 137/12
    In mixed form: 115/12

MathStep (Works offline)

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

Related:

© everydaycalculation.com