Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 40/27 from 45/90

1st number: 45/90, 2nd number: 1 13/27

45/90 - 40/27 is -53/54.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 27 is 270
  2. For the 1st fraction, since 90 × 3 = 270,
    45/90 = 45 × 3/90 × 3 = 135/270
  3. Likewise, for the 2nd fraction, since 27 × 10 = 270,
    40/27 = 40 × 10/27 × 10 = 400/270
  4. Subtract the two fractions:
    135/270 - 400/270 = 135 - 400/270 = -265/270
  5. After reducing the fraction, the answer is -53/54

MathStep (Works offline)

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

Related:

© everydaycalculation.com