Subtract 9/16 from 16/40
16/40 - 9/16 is -13/80.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 16 is 80
Next, find the equivalent fraction of both fractional numbers with denominator 80 - For the 1st fraction, since 40 × 2 = 80,
16/40 = 16 × 2/40 × 2 = 32/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
9/16 = 9 × 5/16 × 5 = 45/80 - Subtract the two like fractions:
32/80 - 45/80 = 32 - 45/80 = -13/80
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/40-9/16 16/40-18/16 16/80-9/16 16/40-9/32 48/40-9/16 16/40-27/16 16/40-9/48 80/40-9/16 16/40-45/16 16/40-9/80 16/40-63/16