Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 98/15 from 12/40

1st number: 12/40, 2nd number: 6 8/15

12/40 - 98/15 is -187/30.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 15 is 120

    Next, find the equivalent fraction of both fractional numbers with denominator 120
  2. For the 1st fraction, since 40 × 3 = 120,
    12/40 = 12 × 3/40 × 3 = 36/120
  3. Likewise, for the 2nd fraction, since 15 × 8 = 120,
    98/15 = 98 × 8/15 × 8 = 784/120
  4. Subtract the two like fractions:
    36/120 - 784/120 = 36 - 784/120 = -748/120
  5. After reducing the fraction, the answer is -187/30

MathStep (Works offline)

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

Related:

© everydaycalculation.com