Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 98/18 and 18/21

1st number: 5 8/18, 2nd number: 18/21

98/18 + 18/21 is 397/63.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 21 is 126

    Next, find the equivalent fraction of both fractional numbers with denominator 126
  2. For the 1st fraction, since 18 × 7 = 126,
    98/18 = 98 × 7/18 × 7 = 686/126
  3. Likewise, for the 2nd fraction, since 21 × 6 = 126,
    18/21 = 18 × 6/21 × 6 = 108/126
  4. Add the two like fractions:
    686/126 + 108/126 = 686 + 108/126 = 794/126
  5. 794/126 simplified gives 397/63
  6. So, 98/18 + 18/21 = 397/63
    In mixed form: 619/63

MathStep (Works offline)

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

Related:

© everydaycalculation.com