Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 3/90 from 12/45

12/45 - 3/90 is 7/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 90 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 45 × 2 = 90,
    12/45 = 12 × 2/45 × 2 = 24/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    3/90 = 3 × 1/90 × 1 = 3/90
  4. Subtract the two like fractions:
    24/90 - 3/90 = 24 - 3/90 = 21/90
  5. After reducing the fraction, the answer is 7/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com