Subtract 81/7 from 10/75
1st number: 10/75, 2nd number: 11 4/7
10/75 - 81/7 is -1201/105.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 7 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 7 × 75 = 525,
81/7 = 81 × 75/7 × 75 = 6075/525 - Subtract the two like fractions:
70/525 - 6075/525 = 70 - 6075/525 = -6005/525 - After reducing the fraction, the answer is -1201/105
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/75-81/7 10/75-81/14 30/75-81/7 10/75-81/21 50/75-81/7 10/75-81/35 70/75-81/7 10/75-81/49