Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/4 and 9/7

1st number: 4 2/4, 2nd number: 1 2/7

18/4 + 9/7 is 81/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 7 is 28
  2. For the 1st fraction, since 4 × 7 = 28,
    18/4 = 18 × 7/4 × 7 = 126/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    9/7 = 9 × 4/7 × 4 = 36/28
  4. Add the two fractions:
    126/28 + 36/28 = 126 + 36/28 = 162/28
  5. 162/28 simplified gives 81/14
  6. So, 18/4 + 9/7 = 81/14
    In mixed form: 511/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com