Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 84/7 and 90/30

1st number: 12 0/7, 2nd number: 3 0/30

84/7 + 90/30 is 15/1.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 7 and 30 is 210
  2. For the 1st fraction, since 7 × 30 = 210,
    84/7 = 84 × 30/7 × 30 = 2520/210
  3. Likewise, for the 2nd fraction, since 30 × 7 = 210,
    90/30 = 90 × 7/30 × 7 = 630/210
  4. Add the two fractions:
    2520/210 + 630/210 = 2520 + 630/210 = 3150/210
  5. 3150/210 simplified gives 15/1
  6. So, 84/7 + 90/30 = 15/1

MathStep (Works offline)

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

Related:

© everydaycalculation.com