Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 90/5 from 9/8

1st number: 1 1/8, 2nd number: 18 0/5

9/8 - 90/5 is -135/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 5 is 40
  2. For the 1st fraction, since 8 × 5 = 40,
    9/8 = 9 × 5/8 × 5 = 45/40
  3. Likewise, for the 2nd fraction, since 5 × 8 = 40,
    90/5 = 90 × 8/5 × 8 = 720/40
  4. Subtract the two fractions:
    45/40 - 720/40 = 45 - 720/40 = -675/40
  5. After reducing the fraction, the answer is -135/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com