Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 42/15 from 1/72

1st number: 1/72, 2nd number: 2 12/15

1/72 - 42/15 is -1003/360.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 72 and 15 is 360

    Next, find the equivalent fraction of both fractional numbers with denominator 360
  2. For the 1st fraction, since 72 × 5 = 360,
    1/72 = 1 × 5/72 × 5 = 5/360
  3. Likewise, for the 2nd fraction, since 15 × 24 = 360,
    42/15 = 42 × 24/15 × 24 = 1008/360
  4. Subtract the two like fractions:
    5/360 - 1008/360 = 5 - 1008/360 = -1003/360

MathStep (Works offline)

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

Related:

© everydaycalculation.com