Answers

Solutions by everydaycalculation.com

Everydaycalculation.com » Answers » Subtract fractions

Subtract 7/80 from 7/45

7/45 - 7/80 is 49/720.

Steps for subtracting fractions

  1. Find the least common denominator or LCM of the two denominators:
    LCM of 45 and 80 is 720
  2. For the 1st fraction, since 45 × 16 = 720,
    7/45 = 7 × 16/45 × 16 = 112/720
  3. Likewise, for the 2nd fraction, since 80 × 9 = 720,
    7/80 = 7 × 9/80 × 9 = 63/720
  4. Subtract the two fractions:
    112/720 - 63/720 = 112 - 63/720 = 49/720

MathStep (Works offline)

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

Related:

© everydaycalculation.com