Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 30/18 from 6/45

1st number: 6/45, 2nd number: 1 12/18

6/45 - 30/18 is -23/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 18 is 90
  2. For the 1st fraction, since 45 × 2 = 90,
    6/45 = 6 × 2/45 × 2 = 12/90
  3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
    30/18 = 30 × 5/18 × 5 = 150/90
  4. Subtract the two fractions:
    12/90 - 150/90 = 12 - 150/90 = -138/90
  5. After reducing the fraction, the answer is -23/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com