Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 7/80 from 98/90

1st number: 1 8/90, 2nd number: 7/80

98/90 - 7/80 is 721/720.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 80 is 720
  2. For the 1st fraction, since 90 × 8 = 720,
    98/90 = 98 × 8/90 × 8 = 784/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    7/80 = 7 × 9/80 × 9 = 63/720
  4. Subtract the two fractions:
    784/720 - 63/720 = 784 - 63/720 = 721/720
  5. In mixed form: 11/720

MathStep (Works offline)

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

Related:

© everydaycalculation.com