Subtract 1/10 from 3/40
3/40 - 1/10 is -1/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 10 is 40
Next, find the equivalent fraction of both fractional numbers with denominator 40 - For the 1st fraction, since 40 × 1 = 40,
3/40 = 3 × 1/40 × 1 = 3/40 - Likewise, for the 2nd fraction, since 10 × 4 = 40,
1/10 = 1 × 4/10 × 4 = 4/40 - Subtract the two like fractions:
3/40 - 4/40 = 3 - 4/40 = -1/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/40-1/10 3/40-2/10 3/80-1/10 3/40-1/20 9/40-1/10 3/40-3/10 3/40-1/30 15/40-1/10 3/40-5/10 3/40-1/50 21/40-1/10 3/40-7/10 3/40-1/70