Subtract 30/27 from 8/7
1st number: 1 1/7, 2nd number: 1 3/27
8/7 - 30/27 is 2/63.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 27 is 189
Next, find the equivalent fraction of both fractional numbers with denominator 189 - For the 1st fraction, since 7 × 27 = 189,
8/7 = 8 × 27/7 × 27 = 216/189 - Likewise, for the 2nd fraction, since 27 × 7 = 189,
30/27 = 30 × 7/27 × 7 = 210/189 - Subtract the two like fractions:
216/189 - 210/189 = 216 - 210/189 = 6/189 - After reducing the fraction, the answer is 2/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7-30/27 8/7-60/27 8/14-30/27 8/7-30/54 24/7-30/27 8/7-90/27 8/21-30/27 8/7-30/81 40/7-30/27 8/35-30/27 56/7-30/27 8/49-30/27