Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 90/7 and 72/30

1st number: 12 6/7, 2nd number: 2 12/30

90/7 + 72/30 is 534/35.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 30 is 210

    Next, find the equivalent fraction of both fractional numbers with denominator 210
  2. For the 1st fraction, since 7 × 30 = 210,
    90/7 = 90 × 30/7 × 30 = 2700/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    72/30 = 72 × 7/30 × 7 = 504/210
  4. Add the two like fractions:
    2700/210 + 504/210 = 2700 + 504/210 = 3204/210
  5. 3204/210 simplified gives 534/35
  6. So, 90/7 + 72/30 = 534/35
    In mixed form: 159/35

MathStep (Works offline)

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

Related:

© everydaycalculation.com