Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/4 and 81/45

1st number: 4 2/4, 2nd number: 1 36/45

18/4 + 81/45 is 63/10.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 45 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 4 × 45 = 180,
    18/4 = 18 × 45/4 × 45 = 810/180
  3. Likewise, for the 2nd fraction, since 45 × 4 = 180,
    81/45 = 81 × 4/45 × 4 = 324/180
  4. Add the two like fractions:
    810/180 + 324/180 = 810 + 324/180 = 1134/180
  5. 1134/180 simplified gives 63/10
  6. So, 18/4 + 81/45 = 63/10
    In mixed form: 63/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com