Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/20 and 2/72

1/20 + 2/72 is 7/90.

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,
    1/20 = 1 × 18/20 × 18 = 18/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    2/72 = 2 × 5/72 × 5 = 10/360
  4. Add the two like fractions:
    18/360 + 10/360 = 18 + 10/360 = 28/360
  5. 28/360 simplified gives 7/90
  6. So, 1/20 + 2/72 = 7/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com