Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 63/84 from 36/70

36/70 - 63/84 is -33/140.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 84 is 420
  2. For the 1st fraction, since 70 × 6 = 420,
    36/70 = 36 × 6/70 × 6 = 216/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    63/84 = 63 × 5/84 × 5 = 315/420
  4. Subtract the two fractions:
    216/420 - 315/420 = 216 - 315/420 = -99/420
  5. After reducing the fraction, the answer is -33/140

MathStep (Works offline)

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

Related:

© everydaycalculation.com