Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/70 and 2/12

1st number: 1 20/70, 2nd number: 2/12

90/70 + 2/12 is 61/42.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 12 is 420
  2. For the 1st fraction, since 70 × 6 = 420,
    90/70 = 90 × 6/70 × 6 = 540/420
  3. Likewise, for the 2nd fraction, since 12 × 35 = 420,
    2/12 = 2 × 35/12 × 35 = 70/420
  4. Add the two fractions:
    540/420 + 70/420 = 540 + 70/420 = 610/420
  5. 610/420 simplified gives 61/42
  6. So, 90/70 + 2/12 = 61/42
    In mixed form: 119/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com