Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 90/18 from 60/70

1st number: 60/70, 2nd number: 5 0/18

60/70 - 90/18 is -29/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 18 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    60/70 = 60 × 9/70 × 9 = 540/630
  3. Likewise, for the 2nd fraction, since 18 × 35 = 630,
    90/18 = 90 × 35/18 × 35 = 3150/630
  4. Subtract the two like fractions:
    540/630 - 3150/630 = 540 - 3150/630 = -2610/630
  5. After reducing the fraction, the answer is -29/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com