Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 90/54 from 4/45

1st number: 4/45, 2nd number: 1 36/54

4/45 - 90/54 is -71/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 54 is 270

    Next, find the equivalent fraction of both fractional numbers with denominator 270
  2. For the 1st fraction, since 45 × 6 = 270,
    4/45 = 4 × 6/45 × 6 = 24/270
  3. Likewise, for the 2nd fraction, since 54 × 5 = 270,
    90/54 = 90 × 5/54 × 5 = 450/270
  4. Subtract the two like fractions:
    24/270 - 450/270 = 24 - 450/270 = -426/270
  5. After reducing the fraction, the answer is -71/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com