Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 15/12 and 7/70

1st number: 1 3/12, 2nd number: 7/70

15/12 + 7/70 is 27/20.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 12 × 35 = 420,
    15/12 = 15 × 35/12 × 35 = 525/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    7/70 = 7 × 6/70 × 6 = 42/420
  4. Add the two like fractions:
    525/420 + 42/420 = 525 + 42/420 = 567/420
  5. 567/420 simplified gives 27/20
  6. So, 15/12 + 7/70 = 27/20
    In mixed form: 17/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com