Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 9/90 and 80/7

1st number: 9/90, 2nd number: 11 3/7

9/90 + 80/7 is 807/70.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 7 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 90 × 7 = 630,
    9/90 = 9 × 7/90 × 7 = 63/630
  3. Likewise, for the 2nd fraction, since 7 × 90 = 630,
    80/7 = 80 × 90/7 × 90 = 7200/630
  4. Add the two like fractions:
    63/630 + 7200/630 = 63 + 7200/630 = 7263/630
  5. 7263/630 simplified gives 807/70
  6. So, 9/90 + 80/7 = 807/70
    In mixed form: 1137/70

MathStep (Works offline)

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

Related:

© everydaycalculation.com