Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/36 and 3/42

1st number: 2 18/36, 2nd number: 3/42

90/36 + 3/42 is 18/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 36 and 42 is 252

    Next, find the equivalent fraction of both fractional numbers with denominator 252
  2. For the 1st fraction, since 36 × 7 = 252,
    90/36 = 90 × 7/36 × 7 = 630/252
  3. Likewise, for the 2nd fraction, since 42 × 6 = 252,
    3/42 = 3 × 6/42 × 6 = 18/252
  4. Add the two like fractions:
    630/252 + 18/252 = 630 + 18/252 = 648/252
  5. 648/252 simplified gives 18/7
  6. So, 90/36 + 3/42 = 18/7
    In mixed form: 24/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com