Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 42/10 and 90/12

1st number: 4 2/10, 2nd number: 7 6/12

42/10 + 90/12 is 117/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 10 and 12 is 60
  2. For the 1st fraction, since 10 × 6 = 60,
    42/10 = 42 × 6/10 × 6 = 252/60
  3. Likewise, for the 2nd fraction, since 12 × 5 = 60,
    90/12 = 90 × 5/12 × 5 = 450/60
  4. Add the two fractions:
    252/60 + 450/60 = 252 + 450/60 = 702/60
  5. 702/60 simplified gives 117/10
  6. So, 42/10 + 90/12 = 117/10
    In mixed form: 117/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com