Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 63/28 from 27/40

1st number: 27/40, 2nd number: 2 7/28

27/40 - 63/28 is -63/40.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 28 is 280
  2. For the 1st fraction, since 40 × 7 = 280,
    27/40 = 27 × 7/40 × 7 = 189/280
  3. Likewise, for the 2nd fraction, since 28 × 10 = 280,
    63/28 = 63 × 10/28 × 10 = 630/280
  4. Subtract the two fractions:
    189/280 - 630/280 = 189 - 630/280 = -441/280
  5. After reducing the fraction, the answer is -63/40

MathStep (Works offline)

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

Related:

© everydaycalculation.com