Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 75/70 from 56/84

1st number: 56/84, 2nd number: 1 5/70

56/84 - 75/70 is -17/42.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 84 and 70 is 420

    Next, find the equivalent fraction of both fractional numbers with denominator 420
  2. For the 1st fraction, since 84 × 5 = 420,
    56/84 = 56 × 5/84 × 5 = 280/420
  3. Likewise, for the 2nd fraction, since 70 × 6 = 420,
    75/70 = 75 × 6/70 × 6 = 450/420
  4. Subtract the two like fractions:
    280/420 - 450/420 = 280 - 450/420 = -170/420
  5. After reducing the fraction, the answer is -17/42

MathStep (Works offline)

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

Related:

© everydaycalculation.com