Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 30/90 from 54/14

1st number: 3 12/14, 2nd number: 30/90

54/14 - 30/90 is 74/21.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 14 and 90 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 14 × 45 = 630,
    54/14 = 54 × 45/14 × 45 = 2430/630
  3. Likewise, for the 2nd fraction, since 90 × 7 = 630,
    30/90 = 30 × 7/90 × 7 = 210/630
  4. Subtract the two like fractions:
    2430/630 - 210/630 = 2430 - 210/630 = 2220/630
  5. After reducing the fraction, the answer is 74/21
  6. In mixed form: 311/21

MathStep (Works offline)

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

Related:

© everydaycalculation.com