Subtract 15/7 from 25/75
1st number: 25/75, 2nd number: 2 1/7
25/75 - 15/7 is -38/21.
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,
25/75 = 25 × 7/75 × 7 = 175/525 - Likewise, for the 2nd fraction, since 7 × 75 = 525,
15/7 = 15 × 75/7 × 75 = 1125/525 - Subtract the two like fractions:
175/525 - 1125/525 = 175 - 1125/525 = -950/525 - After reducing the fraction, the answer is -38/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/75-15/7 25/75-30/7 25/75-15/14 25/75-45/7 25/75-15/21 25/75-75/7 25/75-15/35 25/75-15/49