Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/30 and 42/18

1st number: 3 0/30, 2nd number: 2 6/18

90/30 + 42/18 is 16/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 30 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 30 × 3 = 90,
    90/30 = 90 × 3/30 × 3 = 270/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    42/18 = 42 × 5/18 × 5 = 210/90
  4. Add the two like fractions:
    270/90 + 210/90 = 270 + 210/90 = 480/90
  5. 480/90 simplified gives 16/3
  6. So, 90/30 + 42/18 = 16/3
    In mixed form: 51/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com