Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 72/12 and 45/42

1st number: 6 0/12, 2nd number: 1 3/42

72/12 + 45/42 is 99/14.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 42 is 84
  2. For the 1st fraction, since 12 × 7 = 84,
    72/12 = 72 × 7/12 × 7 = 504/84
  3. Likewise, for the 2nd fraction, since 42 × 2 = 84,
    45/42 = 45 × 2/42 × 2 = 90/84
  4. Add the two fractions:
    504/84 + 90/84 = 504 + 90/84 = 594/84
  5. After reducing the fraction, the answer is 99/14
  6. In mixed form: 71/14

MathStep (Works offline)

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

Related:

© everydaycalculation.com