Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/90 and 21/48

20/90 + 21/48 is 95/144.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 48 is 720

    Next, find the equivalent fraction of both fractional numbers with denominator 720
  2. For the 1st fraction, since 90 × 8 = 720,
    20/90 = 20 × 8/90 × 8 = 160/720
  3. Likewise, for the 2nd fraction, since 48 × 15 = 720,
    21/48 = 21 × 15/48 × 15 = 315/720
  4. Add the two like fractions:
    160/720 + 315/720 = 160 + 315/720 = 475/720
  5. 475/720 simplified gives 95/144
  6. So, 20/90 + 21/48 = 95/144

MathStep (Works offline)

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

Related:

© everydaycalculation.com