Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 36/72 and 42/20

1st number: 36/72, 2nd number: 2 2/20

36/72 + 42/20 is 13/5.

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,
    36/72 = 36 × 5/72 × 5 = 180/360
  3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
    42/20 = 42 × 18/20 × 18 = 756/360
  4. Add the two fractions:
    180/360 + 756/360 = 180 + 756/360 = 936/360
  5. 936/360 simplified gives 13/5
  6. So, 36/72 + 42/20 = 13/5
    In mixed form: 23/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com