Subtract 1/21 from 50/27
1st number: 1 23/27, 2nd number: 1/21
50/27 - 1/21 is 341/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 21 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
50/27 = 50 × 7/27 × 7 = 350/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
1/21 = 1 × 9/21 × 9 = 9/189 - Subtract the two like fractions:
350/189 - 9/189 = 350 - 9/189 = 341/189 - In mixed form: 1152/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/27-2/21 50/54-1/21 50/27-1/42 50/27-3/21 50/81-1/21 50/27-1/63 50/27-5/21 50/27-7/21