Subtract 8/7 from 5/84
1st number: 5/84, 2nd number: 1 1/7
5/84 - 8/7 is -13/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 84 × 1 = 84,
5/84 = 5 × 1/84 × 1 = 5/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
8/7 = 8 × 12/7 × 12 = 96/84 - Subtract the two like fractions:
5/84 - 96/84 = 5 - 96/84 = -91/84 - After reducing the fraction, the answer is -13/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/84-8/7 5/84-16/7 5/84-8/14 15/84-8/7 5/84-24/7 5/84-8/21 25/84-8/7 5/84-40/7 5/84-8/35 35/84-8/7 5/84-56/7 5/84-8/49