Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 42/24 from 3/9

1st number: 3/9, 2nd number: 1 18/24

3/9 - 42/24 is -17/12.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 9 and 24 is 72

    Next, find the equivalent fraction of both fractional numbers with denominator 72
  2. For the 1st fraction, since 9 × 8 = 72,
    3/9 = 3 × 8/9 × 8 = 24/72
  3. Likewise, for the 2nd fraction, since 24 × 3 = 72,
    42/24 = 42 × 3/24 × 3 = 126/72
  4. Subtract the two like fractions:
    24/72 - 126/72 = 24 - 126/72 = -102/72
  5. After reducing the fraction, the answer is -17/12

MathStep (Works offline)

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

Related:

© everydaycalculation.com