Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/18 and 75/7

1st number: 5 0/18, 2nd number: 10 5/7

90/18 + 75/7 is 110/7.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 7 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    90/18 = 90 × 7/18 × 7 = 630/126
  3. Likewise, for the 2nd fraction, since 7 × 18 = 126,
    75/7 = 75 × 18/7 × 18 = 1350/126
  4. Add the two like fractions:
    630/126 + 1350/126 = 630 + 1350/126 = 1980/126
  5. 1980/126 simplified gives 110/7
  6. So, 90/18 + 75/7 = 110/7
    In mixed form: 155/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com