Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 70/28 from 98/90

1st number: 1 8/90, 2nd number: 2 14/28

98/90 - 70/28 is -127/90.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 28 is 1260

    Next, find the equivalent fraction of both fractional numbers with denominator 1260
  2. For the 1st fraction, since 90 × 14 = 1260,
    98/90 = 98 × 14/90 × 14 = 1372/1260
  3. Likewise, for the 2nd fraction, since 28 × 45 = 1260,
    70/28 = 70 × 45/28 × 45 = 3150/1260
  4. Subtract the two like fractions:
    1372/1260 - 3150/1260 = 1372 - 3150/1260 = -1778/1260
  5. After reducing the fraction, the answer is -127/90

MathStep (Works offline)

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

Related:

© everydaycalculation.com