Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 15/42 and 4/10

15/42 + 4/10 is 53/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 10 is 210
  2. For the 1st fraction, since 42 × 5 = 210,
    15/42 = 15 × 5/42 × 5 = 75/210
  3. Likewise, for the 2nd fraction, since 10 × 21 = 210,
    4/10 = 4 × 21/10 × 21 = 84/210
  4. Add the two fractions:
    75/210 + 84/210 = 75 + 84/210 = 159/210
  5. After reducing the fraction, the answer is 53/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com