Subtract 45/21 from 3/75
1st number: 3/75, 2nd number: 2 3/21
3/75 - 45/21 is -368/175.
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,
3/75 = 3 × 7/75 × 7 = 21/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
45/21 = 45 × 25/21 × 25 = 1125/525 - Subtract the two like fractions:
21/525 - 1125/525 = 21 - 1125/525 = -1104/525 - After reducing the fraction, the answer is -368/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 6/75-45/21 3/75-90/21 3/75-45/42 9/75-45/21 3/75-45/63 15/75-45/21 21/75-45/21