Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 54/16 from 30/40

1st number: 30/40, 2nd number: 3 6/16

30/40 - 54/16 is -21/8.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 40 and 16 is 80

    Next, find the equivalent fraction of both fractional numbers with denominator 80
  2. For the 1st fraction, since 40 × 2 = 80,
    30/40 = 30 × 2/40 × 2 = 60/80
  3. Likewise, for the 2nd fraction, since 16 × 5 = 80,
    54/16 = 54 × 5/16 × 5 = 270/80
  4. Subtract the two like fractions:
    60/80 - 270/80 = 60 - 270/80 = -210/80
  5. After reducing the fraction, the answer is -21/8

MathStep (Works offline)

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

Related:

© everydaycalculation.com