Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 6/18 from 7/20

7/20 - 6/18 is 1/60.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180
  2. For the 1st fraction, since 20 × 9 = 180,
    7/20 = 7 × 9/20 × 9 = 63/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    6/18 = 6 × 10/18 × 10 = 60/180
  4. Subtract the two fractions:
    63/180 - 60/180 = 63 - 60/180 = 3/180
  5. After reducing the fraction, the answer is 1/60

MathStep (Works offline)

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

Related:

© everydaycalculation.com