Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/20 and 42/18

1st number: 2 0/20, 2nd number: 2 6/18

40/20 + 42/18 is 13/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    40/20 = 40 × 9/20 × 9 = 360/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    42/18 = 42 × 10/18 × 10 = 420/180
  4. Add the two like fractions:
    360/180 + 420/180 = 360 + 420/180 = 780/180
  5. 780/180 simplified gives 13/3
  6. So, 40/20 + 42/18 = 13/3
    In mixed form: 41/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com