Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 80/14 from 50/21

1st number: 2 8/21, 2nd number: 5 10/14

50/21 - 80/14 is -10/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 21 and 14 is 42

    Next, find the equivalent fraction of both fractional numbers with denominator 42
  2. For the 1st fraction, since 21 × 2 = 42,
    50/21 = 50 × 2/21 × 2 = 100/42
  3. Likewise, for the 2nd fraction, since 14 × 3 = 42,
    80/14 = 80 × 3/14 × 3 = 240/42
  4. Subtract the two like fractions:
    100/42 - 240/42 = 100 - 240/42 = -140/42
  5. After reducing the fraction, the answer is -10/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com