Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/15 and 63/18

1st number: 1 5/15, 2nd number: 3 9/18

20/15 + 63/18 is 29/6.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 15 × 6 = 90,
    20/15 = 20 × 6/15 × 6 = 120/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    63/18 = 63 × 5/18 × 5 = 315/90
  4. Add the two like fractions:
    120/90 + 315/90 = 120 + 315/90 = 435/90
  5. 435/90 simplified gives 29/6
  6. So, 20/15 + 63/18 = 29/6
    In mixed form: 45/6

MathStep (Works offline)

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

Related:

© everydaycalculation.com