Subtract 18/35 from 10/75
10/75 - 18/35 is -8/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 35 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
10/75 = 10 × 7/75 × 7 = 70/525 - Likewise, for the 2nd fraction, since 35 × 15 = 525,
18/35 = 18 × 15/35 × 15 = 270/525 - Subtract the two like fractions:
70/525 - 270/525 = 70 - 270/525 = -200/525 - After reducing the fraction, the answer is -8/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/75-18/35 10/75-36/35 10/75-18/70 30/75-18/35 10/75-54/35 50/75-18/35 10/75-90/35 70/75-18/35