Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 18/48 from 15/70

15/70 - 18/48 is -9/56.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 70 and 48 is 1680
  2. For the 1st fraction, since 70 × 24 = 1680,
    15/70 = 15 × 24/70 × 24 = 360/1680
  3. Likewise, for the 2nd fraction, since 48 × 35 = 1680,
    18/48 = 18 × 35/48 × 35 = 630/1680
  4. Subtract the two fractions:
    360/1680 - 630/1680 = 360 - 630/1680 = -270/1680
  5. After reducing the fraction, the answer is -9/56

MathStep (Works offline)

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

Related:

© everydaycalculation.com