Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 72/20 and 4/72

1st number: 3 12/20, 2nd number: 4/72

72/20 + 4/72 is 329/90.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 20 × 18 = 360,
    72/20 = 72 × 18/20 × 18 = 1296/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    4/72 = 4 × 5/72 × 5 = 20/360
  4. Add the two like fractions:
    1296/360 + 20/360 = 1296 + 20/360 = 1316/360
  5. 1316/360 simplified gives 329/90
  6. So, 72/20 + 4/72 = 329/90
    In mixed form: 359/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com