Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 21/3 and 15/6

1st number: 7 0/3, 2nd number: 2 3/6

21/3 + 15/6 is 19/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 3 and 6 is 6

    Next, find the equivalent fraction of both fractional numbers with denominator 6
  2. For the 1st fraction, since 3 × 2 = 6,
    21/3 = 21 × 2/3 × 2 = 42/6
  3. Likewise, for the 2nd fraction, since 6 × 1 = 6,
    15/6 = 15 × 1/6 × 1 = 15/6
  4. Add the two like fractions:
    42/6 + 15/6 = 42 + 15/6 = 57/6
  5. 57/6 simplified gives 19/2
  6. So, 21/3 + 15/6 = 19/2
    In mixed form: 91/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com