Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/72 and 20/16

1st number: 1 18/72, 2nd number: 1 4/16

90/72 + 20/16 is 5/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 16 is 144
  2. For the 1st fraction, since 72 × 2 = 144,
    90/72 = 90 × 2/72 × 2 = 180/144
  3. Likewise, for the 2nd fraction, since 16 × 9 = 144,
    20/16 = 20 × 9/16 × 9 = 180/144
  4. Add the two fractions:
    180/144 + 180/144 = 180 + 180/144 = 360/144
  5. 360/144 simplified gives 5/2
  6. So, 90/72 + 20/16 = 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