Subtract 70/56 from 9/84
1st number: 9/84, 2nd number: 1 14/56
9/84 - 70/56 is -8/7.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 56 is 168
Next, find the equivalent fraction of both fractional numbers with denominator 168 - For the 1st fraction, since 84 × 2 = 168,
9/84 = 9 × 2/84 × 2 = 18/168 - Likewise, for the 2nd fraction, since 56 × 3 = 168,
70/56 = 70 × 3/56 × 3 = 210/168 - Subtract the two like fractions:
18/168 - 210/168 = 18 - 210/168 = -192/168 - After reducing the fraction, the answer is -8/7
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 18/84-70/56 27/84-70/56 45/84-70/56 63/84-70/56