Subtract 21/54 from 75/5
1st number: 15 0/5, 2nd number: 21/54
75/5 - 21/54 is 263/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 5 × 54 = 270,
75/5 = 75 × 54/5 × 54 = 4050/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
21/54 = 21 × 5/54 × 5 = 105/270 - Subtract the two like fractions:
4050/270 - 105/270 = 4050 - 105/270 = 3945/270 - After reducing the fraction, the answer is 263/18
- In mixed form: 1411/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/5-42/54 75/10-21/54 75/5-63/54 75/15-21/54 75/25-21/54 75/35-21/54