Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 7/9 from 9/80

9/80 - 7/9 is -479/720.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 80 and 9 is 720
  2. For the 1st fraction, since 80 × 9 = 720,
    9/80 = 9 × 9/80 × 9 = 81/720
  3. Likewise, for the 2nd fraction, since 9 × 80 = 720,
    7/9 = 7 × 80/9 × 80 = 560/720
  4. Subtract the two fractions:
    81/720 - 560/720 = 81 - 560/720 = -479/720

MathStep (Works offline)

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

Related:

© everydaycalculation.com