Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 20/18 from 4/20

1st number: 4/20, 2nd number: 1 2/18

4/20 - 20/18 is -41/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 18 is 180

    Next, find the equivalent fraction of both fractional numbers with denominator 180
  2. For the 1st fraction, since 20 × 9 = 180,
    4/20 = 4 × 9/20 × 9 = 36/180
  3. Likewise, for the 2nd fraction, since 18 × 10 = 180,
    20/18 = 20 × 10/18 × 10 = 200/180
  4. Subtract the two like fractions:
    36/180 - 200/180 = 36 - 200/180 = -164/180
  5. After reducing the fraction, the answer is -41/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com