Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/60 and 50/42

1st number: 21/60, 2nd number: 1 8/42

21/60 + 50/42 is 647/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 60 and 42 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 60 × 7 = 420,
    21/60 = 21 × 7/60 × 7 = 147/420
  3. Likewise, for the 2nd fraction, since 42 × 10 = 420,
    50/42 = 50 × 10/42 × 10 = 500/420
  4. Add the two like fractions:
    147/420 + 500/420 = 147 + 500/420 = 647/420
  5. So, 21/60 + 50/42 = 647/420
    In mixed form: 1227/420

MathStep (Works offline)

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

Related:

© everydaycalculation.com