Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Add fractions

Add 10/42 and 20/18

1st number: 10/42, 2nd number: 1 2/18

10/42 + 20/18 is 85/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 18 is 126
  2. For the 1st fraction, since 42 × 3 = 126,
    10/42 = 10 × 3/42 × 3 = 30/126
  3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
    20/18 = 20 × 7/18 × 7 = 140/126
  4. Add the two fractions:
    30/126 + 140/126 = 30 + 140/126 = 170/126
  5. After reducing the fraction, the answer is 85/63
  6. In mixed form: 122/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com