Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 8/40 from 40/18

1st number: 2 4/18, 2nd number: 8/40

40/18 - 8/40 is 91/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 18 and 40 is 360
  2. For the 1st fraction, since 18 × 20 = 360,
    40/18 = 40 × 20/18 × 20 = 800/360
  3. Likewise, for the 2nd fraction, since 40 × 9 = 360,
    8/40 = 8 × 9/40 × 9 = 72/360
  4. Subtract the two fractions:
    800/360 - 72/360 = 800 - 72/360 = 728/360
  5. After reducing the fraction, the answer is 91/45
  6. In mixed form: 21/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com