Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/10 and 15/8

1st number: 7 0/10, 2nd number: 1 7/8

70/10 + 15/8 is 71/8.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 8 is 40

    Next, find the equivalent fraction of both fractional numbers with denominator 40
  2. For the 1st fraction, since 10 × 4 = 40,
    70/10 = 70 × 4/10 × 4 = 280/40
  3. Likewise, for the 2nd fraction, since 8 × 5 = 40,
    15/8 = 15 × 5/8 × 5 = 75/40
  4. Add the two like fractions:
    280/40 + 75/40 = 280 + 75/40 = 355/40
  5. 355/40 simplified gives 71/8
  6. So, 70/10 + 15/8 = 71/8
    In mixed form: 87/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com