Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 30/18 from 45/5

1st number: 9 0/5, 2nd number: 1 12/18

45/5 - 30/18 is 22/3.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 5 and 18 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 5 × 18 = 90,
    45/5 = 45 × 18/5 × 18 = 810/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    30/18 = 30 × 5/18 × 5 = 150/90
  4. Subtract the two like fractions:
    810/90 - 150/90 = 810 - 150/90 = 660/90
  5. After reducing the fraction, the answer is 22/3
  6. In mixed form: 71/3

MathStep (Works offline)

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

Related:

© everydaycalculation.com