Subtract 9/8 from 6/84
1st number: 6/84, 2nd number: 1 1/8
6/84 - 9/8 is -59/56.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 8 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
6/84 = 6 × 2/84 × 2 = 12/168 - Likewise, for the 2nd fraction, since 8 × 21 = 168,
9/8 = 9 × 21/8 × 21 = 189/168 - Subtract the two like fractions:
12/168 - 189/168 = 12 - 189/168 = -177/168 - After reducing the fraction, the answer is -59/56
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 12/84-9/8 6/84-18/8 6/84-9/16 18/84-9/8 6/84-27/8 6/84-9/24 30/84-9/8 6/84-45/8 6/84-9/40 42/84-9/8 6/84-63/8 6/84-9/56