Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 7/2 and 90/30

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

7/2 + 90/30 is 13/2.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 30 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 2 × 15 = 30,
    7/2 = 7 × 15/2 × 15 = 105/30
  3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
    90/30 = 90 × 1/30 × 1 = 90/30
  4. Add the two like fractions:
    105/30 + 90/30 = 105 + 90/30 = 195/30
  5. 195/30 simplified gives 13/2
  6. So, 7/2 + 90/30 = 13/2
    In mixed form: 61/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com