Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 27/7 from 20/6

1st number: 3 2/6, 2nd number: 3 6/7

20/6 - 27/7 is -11/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 6 and 7 is 42
  2. For the 1st fraction, since 6 × 7 = 42,
    20/6 = 20 × 7/6 × 7 = 140/42
  3. Likewise, for the 2nd fraction, since 7 × 6 = 42,
    27/7 = 27 × 6/7 × 6 = 162/42
  4. Subtract the two fractions:
    140/42 - 162/42 = 140 - 162/42 = -22/42
  5. After reducing the fraction, the answer is -11/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com