Subtract 1/40 from 12/16
12/16 - 1/40 is 29/40.
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,
12/16 = 12 × 5/16 × 5 = 60/80 - Likewise, for the 2nd fraction, since 40 × 2 = 80,
1/40 = 1 × 2/40 × 2 = 2/80 - Subtract the two like fractions:
60/80 - 2/80 = 60 - 2/80 = 58/80 - After reducing the fraction, the answer is 29/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/16-1/40 12/16-2/40 12/32-1/40 12/16-1/80 36/16-1/40 12/16-3/40 12/48-1/40 60/16-1/40 12/16-5/40 12/80-1/40 84/16-1/40 12/16-7/40