Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 84/56 from 7/90

1st number: 7/90, 2nd number: 1 28/56

7/90 - 84/56 is -64/45.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 56 is 2520

    Next, find the equivalent fraction of both fractional numbers with denominator 2520
  2. For the 1st fraction, since 90 × 28 = 2520,
    7/90 = 7 × 28/90 × 28 = 196/2520
  3. Likewise, for the 2nd fraction, since 56 × 45 = 2520,
    84/56 = 84 × 45/56 × 45 = 3780/2520
  4. Subtract the two like fractions:
    196/2520 - 3780/2520 = 196 - 3780/2520 = -3584/2520
  5. After reducing the fraction, the answer is -64/45

MathStep (Works offline)

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

Related:

© everydaycalculation.com