Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/15 and 4/7

5/15 + 4/7 is 19/21.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 7 is 105

    Next, find the equivalent fraction of both fractional numbers with denominator 105
  2. For the 1st fraction, since 15 × 7 = 105,
    5/15 = 5 × 7/15 × 7 = 35/105
  3. Likewise, for the 2nd fraction, since 7 × 15 = 105,
    4/7 = 4 × 15/7 × 15 = 60/105
  4. Add the two like fractions:
    35/105 + 60/105 = 35 + 60/105 = 95/105
  5. 95/105 simplified gives 19/21
  6. So, 5/15 + 4/7 = 19/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com