Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 12/7 and 3/90

1st number: 1 5/7, 2nd number: 3/90

12/7 + 3/90 is 367/210.

Steps for adding fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 7 × 90 = 630,
    12/7 = 12 × 90/7 × 90 = 1080/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    3/90 = 3 × 7/90 × 7 = 21/630
  4. Add the two like fractions:
    1080/630 + 21/630 = 1080 + 21/630 = 1101/630
  5. 1101/630 simplified gives 367/210
  6. So, 12/7 + 3/90 = 367/210
    In mixed form: 1157/210

MathStep (Works offline)

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

Related:

© everydaycalculation.com