Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 5/42 and 12/90

5/42 + 12/90 is 53/210.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 42 × 15 = 630,
    5/42 = 5 × 15/42 × 15 = 75/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    12/90 = 12 × 7/90 × 7 = 84/630
  4. Add the two like fractions:
    75/630 + 84/630 = 75 + 84/630 = 159/630
  5. 159/630 simplified gives 53/210
  6. So, 5/42 + 12/90 = 53/210

MathStep (Works offline)

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

Related:

© everydaycalculation.com