Subtract 36/21 from 7/75
1st number: 7/75, 2nd number: 1 15/21
7/75 - 36/21 is -851/525.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 75 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 75 × 7 = 525,
7/75 = 7 × 7/75 × 7 = 49/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
36/21 = 36 × 25/21 × 25 = 900/525 - Subtract the two like fractions:
49/525 - 900/525 = 49 - 900/525 = -851/525
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 14/75-36/21 7/75-72/21 7/75-36/42 21/75-36/21 7/75-36/63 35/75-36/21 49/75-36/21