Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/45 and 21/36

1st number: 1 25/45, 2nd number: 21/36

70/45 + 21/36 is 77/36.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 36 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 45 × 4 = 180,
    70/45 = 70 × 4/45 × 4 = 280/180
  3. Likewise, for the 2nd fraction, since 36 × 5 = 180,
    21/36 = 21 × 5/36 × 5 = 105/180
  4. Add the two like fractions:
    280/180 + 105/180 = 280 + 105/180 = 385/180
  5. 385/180 simplified gives 77/36
  6. So, 70/45 + 21/36 = 77/36
    In mixed form: 25/36

MathStep (Works offline)

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

Related:

© everydaycalculation.com