Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 28/20 and 3/45

1st number: 1 8/20, 2nd number: 3/45

28/20 + 3/45 is 22/15.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    28/20 = 28 × 9/20 × 9 = 252/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    3/45 = 3 × 4/45 × 4 = 12/180
  4. Add the two like fractions:
    252/180 + 12/180 = 252 + 12/180 = 264/180
  5. 264/180 simplified gives 22/15
  6. So, 28/20 + 3/45 = 22/15
    In mixed form: 17/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com