Subtract 45/21 from 8/25
1st number: 8/25, 2nd number: 2 3/21
8/25 - 45/21 is -319/175.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 25 and 21 is 525
Next, find the equivalent fraction of both fractional numbers with denominator 525 - For the 1st fraction, since 25 × 21 = 525,
8/25 = 8 × 21/25 × 21 = 168/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
45/21 = 45 × 25/21 × 25 = 1125/525 - Subtract the two like fractions:
168/525 - 1125/525 = 168 - 1125/525 = -957/525 - After reducing the fraction, the answer is -319/175
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/25-45/21 8/25-90/21 8/50-45/21 8/25-45/42 24/25-45/21 8/75-45/21 8/25-45/63 40/25-45/21 56/25-45/21