Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 80/70 from 32/45

1st number: 32/45, 2nd number: 1 10/70

32/45 - 80/70 is -136/315.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 70 is 630
  2. For the 1st fraction, since 45 × 14 = 630,
    32/45 = 32 × 14/45 × 14 = 448/630
  3. Likewise, for the 2nd fraction, since 70 × 9 = 630,
    80/70 = 80 × 9/70 × 9 = 720/630
  4. Subtract the two fractions:
    448/630 - 720/630 = 448 - 720/630 = -272/630
  5. After reducing the fraction, the answer is -136/315

MathStep (Works offline)

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

Related:

© everydaycalculation.com