Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 21/30 from 3/2

1st number: 1 1/2, 2nd number: 21/30

3/2 - 21/30 is 4/5.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 2 and 30 is 30

    Next, find the equivalent fraction of both fractional numbers with denominator 30
  2. For the 1st fraction, since 2 × 15 = 30,
    3/2 = 3 × 15/2 × 15 = 45/30
  3. Likewise, for the 2nd fraction, since 30 × 1 = 30,
    21/30 = 21 × 1/30 × 1 = 21/30
  4. Subtract the two like fractions:
    45/30 - 21/30 = 45 - 21/30 = 24/30
  5. After reducing the fraction, the answer is 4/5

MathStep (Works offline)

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

Related:

© everydaycalculation.com