Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 3/7 and 98/90

1st number: 3/7, 2nd number: 1 8/90

3/7 + 98/90 is 478/315.

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,
    3/7 = 3 × 90/7 × 90 = 270/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    98/90 = 98 × 7/90 × 7 = 686/630
  4. Add the two like fractions:
    270/630 + 686/630 = 270 + 686/630 = 956/630
  5. 956/630 simplified gives 478/315
  6. So, 3/7 + 98/90 = 478/315
    In mixed form: 1163/315

MathStep (Works offline)

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

Related:

© everydaycalculation.com