Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 40/84 from 40/70

40/70 - 40/84 is 2/21.

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,
    40/70 = 40 × 6/70 × 6 = 240/420
  3. Likewise, for the 2nd fraction, since 84 × 5 = 420,
    40/84 = 40 × 5/84 × 5 = 200/420
  4. Subtract the two fractions:
    240/420 - 200/420 = 240 - 200/420 = 40/420
  5. After reducing the fraction, the answer is 2/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com