Subtract 6/27 from 50/21
1st number: 2 8/21, 2nd number: 6/27
50/21 - 6/27 is 136/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 21 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 21 × 9 = 189,
50/21 = 50 × 9/21 × 9 = 450/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
6/27 = 6 × 7/27 × 7 = 42/189 - Subtract the two like fractions:
450/189 - 42/189 = 450 - 42/189 = 408/189 - After reducing the fraction, the answer is 136/63
- In mixed form: 210/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/21-12/27 50/42-6/27 50/21-6/54 50/21-18/27 50/63-6/27 50/21-6/81 50/21-30/27 50/21-42/27