Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 2/18 and 42/20

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

2/18 + 42/20 is 199/90.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 18 × 10 = 180,
    2/18 = 2 × 10/18 × 10 = 20/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    42/20 = 42 × 9/20 × 9 = 378/180
  4. Add the two like fractions:
    20/180 + 378/180 = 20 + 378/180 = 398/180
  5. 398/180 simplified gives 199/90
  6. So, 2/18 + 42/20 = 199/90
    In mixed form: 219/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com