Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/42 and 21/60

40/42 + 21/60 is 547/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 60 is 420
  2. For the 1st fraction, since 42 × 10 = 420,
    40/42 = 40 × 10/42 × 10 = 400/420
  3. Likewise, for the 2nd fraction, since 60 × 7 = 420,
    21/60 = 21 × 7/60 × 7 = 147/420
  4. Add the two fractions:
    400/420 + 147/420 = 400 + 147/420 = 547/420
  5. So, 40/42 + 21/60 = 547/420
    In mixed form: 1127/420

MathStep (Works offline)

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

Related:

© everydaycalculation.com