Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 75/10 from 70/90

1st number: 70/90, 2nd number: 7 5/10

70/90 - 75/10 is -121/18.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 90 and 10 is 90

    Next, find the equivalent fraction of both fractional numbers with denominator 90
  2. For the 1st fraction, since 90 × 1 = 90,
    70/90 = 70 × 1/90 × 1 = 70/90
  3. Likewise, for the 2nd fraction, since 10 × 9 = 90,
    75/10 = 75 × 9/10 × 9 = 675/90
  4. Subtract the two like fractions:
    70/90 - 675/90 = 70 - 675/90 = -605/90
  5. After reducing the fraction, the answer is -121/18

MathStep (Works offline)

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

Related:

© everydaycalculation.com