Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 20/5 from 2/4

1st number: 2/4, 2nd number: 4 0/5

2/4 - 20/5 is -7/2.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 4 and 5 is 20

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 4 × 5 = 20,
    2/4 = 2 × 5/4 × 5 = 10/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    20/5 = 20 × 4/5 × 4 = 80/20
  4. Subtract the two like fractions:
    10/20 - 80/20 = 10 - 80/20 = -70/20
  5. After reducing the fraction, the answer is -7/2

MathStep (Works offline)

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

Related:

© everydaycalculation.com