Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/2 and 42/18

1st number: 45 0/2, 2nd number: 2 6/18

90/2 + 42/18 is 142/3.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 18 is 18

    Next, find the equivalent fraction of both fractional numbers with denominator 18
  2. For the 1st fraction, since 2 × 9 = 18,
    90/2 = 90 × 9/2 × 9 = 810/18
  3. Likewise, for the 2nd fraction, since 18 × 1 = 18,
    42/18 = 42 × 1/18 × 1 = 42/18
  4. Add the two like fractions:
    810/18 + 42/18 = 810 + 42/18 = 852/18
  5. 852/18 simplified gives 142/3
  6. So, 90/2 + 42/18 = 142/3
    In mixed form: 471/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com