Subtract 40/30 from 7/75
1st number: 7/75, 2nd number: 1 10/30
7/75 - 40/30 is -31/25.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 30 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 75 × 2 = 150,
7/75 = 7 × 2/75 × 2 = 14/150 - Likewise, for the 2nd fraction, since 30 × 5 = 150,
40/30 = 40 × 5/30 × 5 = 200/150 - Subtract the two like fractions:
14/150 - 200/150 = 14 - 200/150 = -186/150 - After reducing the fraction, the answer is -31/25
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/75-40/30 7/75-80/30 7/75-40/60 21/75-40/30 7/75-40/90 35/75-40/30 49/75-40/30