Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 49/21 and 9/20

1st number: 2 7/21, 2nd number: 9/20

49/21 + 9/20 is 167/60.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 20 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 21 × 20 = 420,
    49/21 = 49 × 20/21 × 20 = 980/420
  3. Likewise, for the 2nd fraction, since 20 × 21 = 420,
    9/20 = 9 × 21/20 × 21 = 189/420
  4. Add the two like fractions:
    980/420 + 189/420 = 980 + 189/420 = 1169/420
  5. 1169/420 simplified gives 167/60
  6. So, 49/21 + 9/20 = 167/60
    In mixed form: 247/60

MathStep (Works offline)

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

Related:

© everydaycalculation.com