Subtract 45/7 from 4/27
1st number: 4/27, 2nd number: 6 3/7
4/27 - 45/7 is -1187/189.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 27 and 7 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 27 × 7 = 189,
4/27 = 4 × 7/27 × 7 = 28/189 - Likewise, for the 2nd fraction, since 7 × 27 = 189,
45/7 = 45 × 27/7 × 27 = 1215/189 - Subtract the two like fractions:
28/189 - 1215/189 = 28 - 1215/189 = -1187/189
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/27-45/7 4/27-90/7 4/54-45/7 4/27-45/14 12/27-45/7 4/81-45/7 4/27-45/21 20/27-45/7 4/27-45/35 28/27-45/7 4/27-45/49