Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 6/7 and 18/20

6/7 + 18/20 is 123/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 20 is 140
  2. For the 1st fraction, since 7 × 20 = 140,
    6/7 = 6 × 20/7 × 20 = 120/140
  3. Likewise, for the 2nd fraction, since 20 × 7 = 140,
    18/20 = 18 × 7/20 × 7 = 126/140
  4. Add the two fractions:
    120/140 + 126/140 = 120 + 126/140 = 246/140
  5. 246/140 simplified gives 123/70
  6. So, 6/7 + 18/20 = 123/70
    In mixed form: 153/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com