Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 4/21 and 9/60

4/21 + 9/60 is 143/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 60 is 420
  2. For the 1st fraction, since 21 × 20 = 420,
    4/21 = 4 × 20/21 × 20 = 80/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    9/60 = 9 × 7/60 × 7 = 63/420
  4. Add the two fractions:
    80/420 + 63/420 = 80 + 63/420 = 143/420

MathStep (Works offline)

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

Related:

© everydaycalculation.com