Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 18/72 and 15/5

1st number: 18/72, 2nd number: 3 0/5

18/72 + 15/5 is 13/4.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 5 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    18/72 = 18 × 5/72 × 5 = 90/360
  3. Likewise, for the 2nd fraction, since 5 × 72 = 360,
    15/5 = 15 × 72/5 × 72 = 1080/360
  4. Add the two like fractions:
    90/360 + 1080/360 = 90 + 1080/360 = 1170/360
  5. 1170/360 simplified gives 13/4
  6. So, 18/72 + 15/5 = 13/4
    In mixed form: 31/4

MathStep (Works offline)

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

Related:

© everydaycalculation.com