Subtract 18/12 from 5/75
1st number: 5/75, 2nd number: 1 6/12
5/75 - 18/12 is -43/30.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 12 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 75 × 4 = 300,
5/75 = 5 × 4/75 × 4 = 20/300 - Likewise, for the 2nd fraction, since 12 × 25 = 300,
18/12 = 18 × 25/12 × 25 = 450/300 - Subtract the two like fractions:
20/300 - 450/300 = 20 - 450/300 = -430/300 - After reducing the fraction, the answer is -43/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/75-18/12 5/75-36/12 5/75-18/24 15/75-18/12 5/75-54/12 5/75-18/36 25/75-18/12 5/75-90/12 5/75-18/60 35/75-18/12 5/75-18/84