Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/15 and 21/49

1st number: 1 3/15, 2nd number: 21/49

18/15 + 21/49 is 57/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 49 is 735
  2. For the 1st fraction, since 15 × 49 = 735,
    18/15 = 18 × 49/15 × 49 = 882/735
  3. Likewise, for the 2nd fraction, since 49 × 15 = 735,
    21/49 = 21 × 15/49 × 15 = 315/735
  4. Add the two fractions:
    882/735 + 315/735 = 882 + 315/735 = 1197/735
  5. 1197/735 simplified gives 57/35
  6. So, 18/15 + 21/49 = 57/35
    In mixed form: 122/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com