Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Add fractions

Add 70/90 and 9/72

70/90 + 9/72 is 65/72.

Steps for adding fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 72 is 360
  2. For the 1st fraction, since 90 × 4 = 360,
    70/90 = 70 × 4/90 × 4 = 280/360
  3. Likewise, for the 2nd fraction, since 72 × 5 = 360,
    9/72 = 9 × 5/72 × 5 = 45/360
  4. Add the two fractions:
    280/360 + 45/360 = 280 + 45/360 = 325/360
  5. 325/360 simplified gives 65/72
  6. So, 70/90 + 9/72 = 65/72

MathStep (Works offline)

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

Related:

© everydaycalculation.com