Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 90/70 from 10/8

1st number: 1 2/8, 2nd number: 1 20/70

10/8 - 90/70 is -1/28.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 8 and 70 is 280

    Next, find the equivalent fraction of both fractional numbers with denominator 280
  2. For the 1st fraction, since 8 × 35 = 280,
    10/8 = 10 × 35/8 × 35 = 350/280
  3. Likewise, for the 2nd fraction, since 70 × 4 = 280,
    90/70 = 90 × 4/70 × 4 = 360/280
  4. Subtract the two like fractions:
    350/280 - 360/280 = 350 - 360/280 = -10/280
  5. After reducing the fraction, the answer is -1/28

MathStep (Works offline)

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

Related:

© everydaycalculation.com