Subtract 40/10 from 7/2
1st number: 3 1/2, 2nd number: 4 0/10
7/2 - 40/10 is -1/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 10 is 10
Next, find the equivalent fraction of both fractional numbers with denominator 10 - For the 1st fraction, since 2 × 5 = 10,
7/2 = 7 × 5/2 × 5 = 35/10 - Likewise, for the 2nd fraction, since 10 × 1 = 10,
40/10 = 40 × 1/10 × 1 = 40/10 - Subtract the two like fractions:
35/10 - 40/10 = 35 - 40/10 = -5/10 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/2-40/10 7/2-80/10 7/4-40/10 7/2-40/20 21/2-40/10 7/6-40/10 7/2-40/30 35/2-40/10 7/10-40/10 7/2-40/50 49/2-40/10 7/14-40/10 7/2-40/70