Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 81/72 and 70/98

1st number: 1 9/72, 2nd number: 70/98

81/72 + 70/98 is 103/56.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 98 is 3528

    Next, find the equivalent fraction of both fractional numbers with denominator 3528
  2. For the 1st fraction, since 72 × 49 = 3528,
    81/72 = 81 × 49/72 × 49 = 3969/3528
  3. Likewise, for the 2nd fraction, since 98 × 36 = 3528,
    70/98 = 70 × 36/98 × 36 = 2520/3528
  4. Add the two like fractions:
    3969/3528 + 2520/3528 = 3969 + 2520/3528 = 6489/3528
  5. 6489/3528 simplified gives 103/56
  6. So, 81/72 + 70/98 = 103/56
    In mixed form: 147/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com