Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 30/5 from 7/20

1st number: 7/20, 2nd number: 6 0/5

7/20 - 30/5 is -113/20.

Steps for subtracting fractions

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

    Next, find the equivalent fraction of both fractional numbers with denominator 20
  2. For the 1st fraction, since 20 × 1 = 20,
    7/20 = 7 × 1/20 × 1 = 7/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    30/5 = 30 × 4/5 × 4 = 120/20
  4. Subtract the two like fractions:
    7/20 - 120/20 = 7 - 120/20 = -113/20

MathStep (Works offline)

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

Related:

© everydaycalculation.com