Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/20 and 10/90

1st number: 4 10/20, 2nd number: 10/90

90/20 + 10/90 is 83/18.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 90 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    90/20 = 90 × 9/20 × 9 = 810/180
  3. Likewise, for the 2nd fraction, since 90 × 2 = 180,
    10/90 = 10 × 2/90 × 2 = 20/180
  4. Add the two like fractions:
    810/180 + 20/180 = 810 + 20/180 = 830/180
  5. 830/180 simplified gives 83/18
  6. So, 90/20 + 10/90 = 83/18
    In mixed form: 411/18

MathStep (Works offline)

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

Related:

© everydaycalculation.com