Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/4 and 90/7

1st number: 3 0/4, 2nd number: 12 6/7

12/4 + 90/7 is 111/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 7 is 28

    Next, find the equivalent fraction of both fractional numbers with denominator 28
  2. For the 1st fraction, since 4 × 7 = 28,
    12/4 = 12 × 7/4 × 7 = 84/28
  3. Likewise, for the 2nd fraction, since 7 × 4 = 28,
    90/7 = 90 × 4/7 × 4 = 360/28
  4. Add the two like fractions:
    84/28 + 360/28 = 84 + 360/28 = 444/28
  5. 444/28 simplified gives 111/7
  6. So, 12/4 + 90/7 = 111/7
    In mixed form: 156/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com