Subtract 54/21 from 10/25
1st number: 10/25, 2nd number: 2 12/21
10/25 - 54/21 is -76/35.
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,
10/25 = 10 × 21/25 × 21 = 210/525 - Likewise, for the 2nd fraction, since 21 × 25 = 525,
54/21 = 54 × 25/21 × 25 = 1350/525 - Subtract the two like fractions:
210/525 - 1350/525 = 210 - 1350/525 = -1140/525 - After reducing the fraction, the answer is -76/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/25-54/21 10/50-54/21 10/25-54/42 30/25-54/21 10/75-54/21 10/25-54/63 50/25-54/21 70/25-54/21