Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 64/45 and 18/20

1st number: 1 19/45, 2nd number: 18/20

64/45 + 18/20 is 209/90.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 20 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    64/45 = 64 × 4/45 × 4 = 256/180
  3. Likewise, for the 2nd fraction, since 20 × 9 = 180,
    18/20 = 18 × 9/20 × 9 = 162/180
  4. Add the two like fractions:
    256/180 + 162/180 = 256 + 162/180 = 418/180
  5. 418/180 simplified gives 209/90
  6. So, 64/45 + 18/20 = 209/90
    In mixed form: 229/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com