Subtract 3/75 from 18/70
18/70 - 3/75 is 38/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 75 is 1050
Next, find the equivalent fraction of both fractional numbers with denominator 1050 - For the 1st fraction, since 70 × 15 = 1050,
18/70 = 18 × 15/70 × 15 = 270/1050 - Likewise, for the 2nd fraction, since 75 × 14 = 1050,
3/75 = 3 × 14/75 × 14 = 42/1050 - Subtract the two like fractions:
270/1050 - 42/1050 = 270 - 42/1050 = 228/1050 - After reducing the fraction, the answer is 38/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70-3/75 18/70-6/75 54/70-3/75 18/70-9/75 90/70-3/75 18/70-15/75 18/70-21/75