Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/54 and 90/49

1st number: 21/54, 2nd number: 1 41/49

21/54 + 90/49 is 1963/882.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 49 is 2646

    Next, find the equivalent fraction of both fractional numbers with denominator 2646
  2. For the 1st fraction, since 54 × 49 = 2646,
    21/54 = 21 × 49/54 × 49 = 1029/2646
  3. Likewise, for the 2nd fraction, since 49 × 54 = 2646,
    90/49 = 90 × 54/49 × 54 = 4860/2646
  4. Add the two like fractions:
    1029/2646 + 4860/2646 = 1029 + 4860/2646 = 5889/2646
  5. 5889/2646 simplified gives 1963/882
  6. So, 21/54 + 90/49 = 1963/882
    In mixed form: 2199/882

MathStep (Works offline)

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

Related:

© everydaycalculation.com