Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 40/18 and 15/45

1st number: 2 4/18, 2nd number: 15/45

40/18 + 15/45 is 23/9.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 45 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 18 × 5 = 90,
    40/18 = 40 × 5/18 × 5 = 200/90
  3. Likewise, for the 2nd fraction, since 45 × 2 = 90,
    15/45 = 15 × 2/45 × 2 = 30/90
  4. Add the two like fractions:
    200/90 + 30/90 = 200 + 30/90 = 230/90
  5. 230/90 simplified gives 23/9
  6. So, 40/18 + 15/45 = 23/9
    In mixed form: 25/9

MathStep (Works offline)

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

Related:

© everydaycalculation.com