Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/72 and 42/20

1st number: 7/72, 2nd number: 2 2/20

7/72 + 42/20 is 791/360.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 20 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    7/72 = 7 × 5/72 × 5 = 35/360
  3. Likewise, for the 2nd fraction, since 20 × 18 = 360,
    42/20 = 42 × 18/20 × 18 = 756/360
  4. Add the two like fractions:
    35/360 + 756/360 = 35 + 756/360 = 791/360
  5. So, 7/72 + 42/20 = 791/360
    In mixed form: 271/360

MathStep (Works offline)

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

Related:

© everydaycalculation.com