Subtract 45/18 from 7/75
1st number: 7/75, 2nd number: 2 9/18
7/75 - 45/18 is -361/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 18 is 450
Next, find the equivalent fraction of both fractional numbers with denominator 450 - For the 1st fraction, since 75 × 6 = 450,
7/75 = 7 × 6/75 × 6 = 42/450 - Likewise, for the 2nd fraction, since 18 × 25 = 450,
45/18 = 45 × 25/18 × 25 = 1125/450 - Subtract the two like fractions:
42/450 - 1125/450 = 42 - 1125/450 = -1083/450 - After reducing the fraction, the answer is -361/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/75-45/18 7/75-90/18 7/75-45/36 21/75-45/18 7/75-45/54 35/75-45/18 7/75-45/90 49/75-45/18