Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 70/42 from 10/54

1st number: 10/54, 2nd number: 1 28/42

10/54 - 70/42 is -40/27.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 54 and 42 is 378

    Next, find the equivalent fraction of both fractional numbers with denominator 378
  2. For the 1st fraction, since 54 × 7 = 378,
    10/54 = 10 × 7/54 × 7 = 70/378
  3. Likewise, for the 2nd fraction, since 42 × 9 = 378,
    70/42 = 70 × 9/42 × 9 = 630/378
  4. Subtract the two like fractions:
    70/378 - 630/378 = 70 - 630/378 = -560/378
  5. After reducing the fraction, the answer is -40/27

MathStep (Works offline)

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

Related:

© everydaycalculation.com