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