Answers

Solutions by everydaycalculation.com

Answers.everydaycalculation.com » Subtract fractions

Subtract 70/45 from 12/70

1st number: 12/70, 2nd number: 1 25/45

12/70 - 70/45 is -436/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 45 is 630

    Next, find the equivalent fraction of both fractional numbers with denominator 630
  2. For the 1st fraction, since 70 × 9 = 630,
    12/70 = 12 × 9/70 × 9 = 108/630
  3. Likewise, for the 2nd fraction, since 45 × 14 = 630,
    70/45 = 70 × 14/45 × 14 = 980/630
  4. Subtract the two like fractions:
    108/630 - 980/630 = 108 - 980/630 = -872/630
  5. After reducing the fraction, the answer is -436/315

MathStep (Works offline)

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

Related:

© everydaycalculation.com