Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/72 and 70/56

1st number: 1 18/72, 2nd number: 1 14/56

90/72 + 70/56 is 5/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 56 is 504

    Next, find the equivalent fraction of both fractional numbers with denominator 504
  2. For the 1st fraction, since 72 × 7 = 504,
    90/72 = 90 × 7/72 × 7 = 630/504
  3. Likewise, for the 2nd fraction, since 56 × 9 = 504,
    70/56 = 70 × 9/56 × 9 = 630/504
  4. Add the two like fractions:
    630/504 + 630/504 = 630 + 630/504 = 1260/504
  5. 1260/504 simplified gives 5/2
  6. So, 90/72 + 70/56 = 5/2
    In mixed form: 21/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com