Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 90/10 from 40/70

1st number: 40/70, 2nd number: 9 0/10

40/70 - 90/10 is -59/7.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 10 is 70
  2. For the 1st fraction, since 70 × 1 = 70,
    40/70 = 40 × 1/70 × 1 = 40/70
  3. Likewise, for the 2nd fraction, since 10 × 7 = 70,
    90/10 = 90 × 7/10 × 7 = 630/70
  4. Subtract the two fractions:
    40/70 - 630/70 = 40 - 630/70 = -590/70
  5. After reducing the fraction, the answer is -59/7

MathStep (Works offline)

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

Related:

© everydaycalculation.com