Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/42 and 49/20

1st number: 40/42, 2nd number: 2 9/20

40/42 + 49/20 is 1429/420.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 20 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 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 20 × 21 = 420,
    49/20 = 49 × 21/20 × 21 = 1029/420
  4. Add the two like fractions:
    400/420 + 1029/420 = 400 + 1029/420 = 1429/420
  5. So, 40/42 + 49/20 = 1429/420
    In mixed form: 3169/420

MathStep (Works offline)

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

Related:

© everydaycalculation.com