Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 30/2 and 48/21

1st number: 15 0/2, 2nd number: 2 6/21

30/2 + 48/21 is 121/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 21 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 2 × 21 = 42,
    30/2 = 30 × 21/2 × 21 = 630/42
  3. Likewise, for the 2nd fraction, since 21 × 2 = 42,
    48/21 = 48 × 2/21 × 2 = 96/42
  4. Add the two like fractions:
    630/42 + 96/42 = 630 + 96/42 = 726/42
  5. 726/42 simplified gives 121/7
  6. So, 30/2 + 48/21 = 121/7
    In mixed form: 172/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com