Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/72 and 63/20

1st number: 42/72, 2nd number: 3 3/20

42/72 + 63/20 is 56/15.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 20 is 360
  2. For the 1st fraction, since 72 × 5 = 360,
    42/72 = 42 × 5/72 × 5 = 210/360
  3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
    63/20 = 63 × 18/20 × 18 = 1134/360
  4. Add the two fractions:
    210/360 + 1134/360 = 210 + 1134/360 = 1344/360
  5. 1344/360 simplified gives 56/15
  6. So, 42/72 + 63/20 = 56/15
    In mixed form: 311/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com