Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 72/20 from 1/27

1st number: 1/27, 2nd number: 3 12/20

1/27 - 72/20 is -481/135.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 27 and 20 is 540

    Next, find the equivalent fraction of both fractional numbers with denominator 540
  2. For the 1st fraction, since 27 × 20 = 540,
    1/27 = 1 × 20/27 × 20 = 20/540
  3. Likewise, for the 2nd fraction, since 20 × 27 = 540,
    72/20 = 72 × 27/20 × 27 = 1944/540
  4. Subtract the two like fractions:
    20/540 - 1944/540 = 20 - 1944/540 = -1924/540
  5. After reducing the fraction, the answer is -481/135

MathStep (Works offline)

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

Related:

© everydaycalculation.com