Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 45/80 from 30/20

1st number: 1 10/20, 2nd number: 45/80

30/20 - 45/80 is 15/16.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 20 and 80 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 20 × 4 = 80,
    30/20 = 30 × 4/20 × 4 = 120/80
  3. Likewise, for the 2nd fraction, since 80 × 1 = 80,
    45/80 = 45 × 1/80 × 1 = 45/80
  4. Subtract the two like fractions:
    120/80 - 45/80 = 120 - 45/80 = 75/80
  5. After reducing the fraction, the answer is 15/16

MathStep (Works offline)

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

Related:

© everydaycalculation.com