Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 45/21 and 2/12

1st number: 2 3/21, 2nd number: 2/12

45/21 + 2/12 is 97/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 12 is 84

    Next, find the equivalent fraction of both fractional numbers with denominator 84
  2. For the 1st fraction, since 21 × 4 = 84,
    45/21 = 45 × 4/21 × 4 = 180/84
  3. Likewise, for the 2nd fraction, since 12 × 7 = 84,
    2/12 = 2 × 7/12 × 7 = 14/84
  4. Add the two like fractions:
    180/84 + 14/84 = 180 + 14/84 = 194/84
  5. 194/84 simplified gives 97/42
  6. So, 45/21 + 2/12 = 97/42
    In mixed form: 213/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com