Subtract 4/16 from 7/40
7/40 - 4/16 is -3/40.
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,
7/40 = 7 × 2/40 × 2 = 14/80 - Likewise, for the 2nd fraction, since 16 × 5 = 80,
4/16 = 4 × 5/16 × 5 = 20/80 - Subtract the two like fractions:
14/80 - 20/80 = 14 - 20/80 = -6/80 - After reducing the fraction, the answer is -3/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/40-4/16 7/40-8/16 7/80-4/16 7/40-4/32 21/40-4/16 7/40-12/16 7/40-4/48 35/40-4/16 7/40-20/16 7/40-4/80 49/40-4/16 7/40-28/16