Subtract 9/80 from 90/96
90/96 - 9/80 is 33/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 96 and 80 is 480
Next, find the equivalent fraction of both fractional numbers with denominator 480 - For the 1st fraction, since 96 × 5 = 480,
90/96 = 90 × 5/96 × 5 = 450/480 - Likewise, for the 2nd fraction, since 80 × 6 = 480,
9/80 = 9 × 6/80 × 6 = 54/480 - Subtract the two like fractions:
450/480 - 54/480 = 450 - 54/480 = 396/480 - After reducing the fraction, the answer is 33/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/96-18/80 90/96-27/80 90/96-45/80 90/96-63/80