Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 63/40 from 18/12

1st number: 1 6/12, 2nd number: 1 23/40

18/12 - 63/40 is -3/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 12 and 40 is 120
  2. For the 1st fraction, since 12 × 10 = 120,
    18/12 = 18 × 10/12 × 10 = 180/120
  3. Likewise, for the 2nd fraction, since 40 × 3 = 120,
    63/40 = 63 × 3/40 × 3 = 189/120
  4. Subtract the two fractions:
    180/120 - 189/120 = 180 - 189/120 = -9/120
  5. After reducing the fraction, the answer is -3/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com