Subtract 50/21 from 2/27
1st number: 2/27, 2nd number: 2 8/21
2/27 - 50/21 is -436/189.
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,
2/27 = 2 × 7/27 × 7 = 14/189 - Likewise, for the 2nd fraction, since 21 × 9 = 189,
50/21 = 50 × 9/21 × 9 = 450/189 - Subtract the two like fractions:
14/189 - 450/189 = 14 - 450/189 = -436/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 4/27-50/21 2/54-50/21 2/27-50/42 6/27-50/21 2/81-50/21 2/27-50/63 10/27-50/21 14/27-50/21