Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 72/5 from 30/4

1st number: 7 2/4, 2nd number: 14 2/5

30/4 - 72/5 is -69/10.

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,
    30/4 = 30 × 5/4 × 5 = 150/20
  3. Likewise, for the 2nd fraction, since 5 × 4 = 20,
    72/5 = 72 × 4/5 × 4 = 288/20
  4. Subtract the two like fractions:
    150/20 - 288/20 = 150 - 288/20 = -138/20
  5. After reducing the fraction, the answer is -69/10

MathStep (Works offline)

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

Related:

© everydaycalculation.com