Subtract 9/40 from 9/16
9/16 - 9/40 is 27/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 16 and 40 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 16 × 5 = 80,
9/16 = 9 × 5/16 × 5 = 45/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
9/40 = 9 × 2/40 × 2 = 18/80 - Subtract the two like fractions:
45/80 - 18/80 = 45 - 18/80 = 27/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/16-9/40 9/16-18/40 9/32-9/40 9/16-9/80 27/16-9/40 9/16-27/40 9/48-9/40 45/16-9/40 9/16-45/40 9/80-9/40 63/16-9/40 9/16-63/40