Subtract 21/27 from 75/10
1st number: 7 5/10, 2nd number: 21/27
75/10 - 21/27 is 121/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 10 and 27 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 10 × 27 = 270,
75/10 = 75 × 27/10 × 27 = 2025/270 - Likewise, for the 2nd fraction, since 27 × 10 = 270,
21/27 = 21 × 10/27 × 10 = 210/270 - Subtract the two like fractions:
2025/270 - 210/270 = 2025 - 210/270 = 1815/270 - After reducing the fraction, the answer is 121/18
- In mixed form: 613/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/10-42/27 75/20-21/27 75/10-21/54 75/10-63/27 75/30-21/27 75/10-21/81 75/50-21/27 75/70-21/27