Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 1/90 and 63/84

1/90 + 63/84 is 137/180.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 84 is 1260
  2. For the 1st fraction, since 90 × 14 = 1260,
    1/90 = 1 × 14/90 × 14 = 14/1260
  3. Likewise, for the 2nd fraction, since 84 × 15 = 1260,
    63/84 = 63 × 15/84 × 15 = 945/1260
  4. Add the two fractions:
    14/1260 + 945/1260 = 14 + 945/1260 = 959/1260
  5. 959/1260 simplified gives 137/180
  6. So, 1/90 + 63/84 = 137/180

MathStep (Works offline)

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

Related:

© everydaycalculation.com