Subtract 48/18 from 8/7
1st number: 1 1/7, 2nd number: 2 12/18
8/7 - 48/18 is -32/21.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
8/7 = 8 × 18/7 × 18 = 144/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
48/18 = 48 × 7/18 × 7 = 336/126 - Subtract the two like fractions:
144/126 - 336/126 = 144 - 336/126 = -192/126 - After reducing the fraction, the answer is -32/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/7-48/18 8/7-96/18 8/14-48/18 8/7-48/36 24/7-48/18 8/21-48/18 8/7-48/54 40/7-48/18 8/35-48/18 8/7-48/90 56/7-48/18 8/49-48/18