Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 42/90 from 90/15

1st number: 6 0/15, 2nd number: 42/90

90/15 - 42/90 is 83/15.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 15 and 90 is 90
  2. For the 1st fraction, since 15 × 6 = 90,
    90/15 = 90 × 6/15 × 6 = 540/90
  3. Likewise, for the 2nd fraction, since 90 × 1 = 90,
    42/90 = 42 × 1/90 × 1 = 42/90
  4. Subtract the two fractions:
    540/90 - 42/90 = 540 - 42/90 = 498/90
  5. After reducing the fraction, the answer is 83/15
  6. In mixed form: 58/15

MathStep (Works offline)

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

Related:

© everydaycalculation.com