Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 20/18 and 7/8

1st number: 1 2/18, 2nd number: 7/8

20/18 + 7/8 is 143/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 8 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 18 × 4 = 72,
    20/18 = 20 × 4/18 × 4 = 80/72
  3. Likewise, for the 2nd fraction, since 8 × 9 = 72,
    7/8 = 7 × 9/8 × 9 = 63/72
  4. Add the two like fractions:
    80/72 + 63/72 = 80 + 63/72 = 143/72
  5. So, 20/18 + 7/8 = 143/72
    In mixed form: 171/72

MathStep (Works offline)

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

Related:

© everydaycalculation.com