Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/25 and 18/72

20/25 + 18/72 is 21/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 25 and 72 is 1800

    Next, find the equivalent fraction of both fractional numbers with denominator 1800
  2. For the 1st fraction, since 25 × 72 = 1800,
    20/25 = 20 × 72/25 × 72 = 1440/1800
  3. Likewise, for the 2nd fraction, since 72 × 25 = 1800,
    18/72 = 18 × 25/72 × 25 = 450/1800
  4. Add the two like fractions:
    1440/1800 + 450/1800 = 1440 + 450/1800 = 1890/1800
  5. 1890/1800 simplified gives 21/20
  6. So, 20/25 + 18/72 = 21/20
    In mixed form: 11/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com