Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/6 and 21/8

1st number: 3 0/6, 2nd number: 2 5/8

18/6 + 21/8 is 45/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 8 is 24
  2. For the 1st fraction, since 6 × 4 = 24,
    18/6 = 18 × 4/6 × 4 = 72/24
  3. Likewise, for the 2nd fraction, since 8 × 3 = 24,
    21/8 = 21 × 3/8 × 3 = 63/24
  4. Add the two fractions:
    72/24 + 63/24 = 72 + 63/24 = 135/24
  5. 135/24 simplified gives 45/8
  6. So, 18/6 + 21/8 = 45/8
    In mixed form: 55/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com