Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 42/50 from 4/90

4/90 - 42/50 is -179/225.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 50 is 450
  2. For the 1st fraction, since 90 × 5 = 450,
    4/90 = 4 × 5/90 × 5 = 20/450
  3. Likewise, for the 2nd fraction, since 50 × 9 = 450,
    42/50 = 42 × 9/50 × 9 = 378/450
  4. Subtract the two fractions:
    20/450 - 378/450 = 20 - 378/450 = -358/450
  5. After reducing the fraction, the answer is -179/225

MathStep (Works offline)

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

Related:

© everydaycalculation.com