Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/42 and 6/90

18/42 + 6/90 is 52/105.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 42 and 90 is 630
  2. For the 1st fraction, since 42 × 15 = 630,
    18/42 = 18 × 15/42 × 15 = 270/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    6/90 = 6 × 7/90 × 7 = 42/630
  4. Add the two fractions:
    270/630 + 42/630 = 270 + 42/630 = 312/630
  5. 312/630 simplified gives 52/105
  6. So, 18/42 + 6/90 = 52/105

MathStep (Works offline)

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

Related:

© everydaycalculation.com