Subtract 7/9 from 10/84
10/84 - 7/9 is -83/126.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 84 and 9 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 84 × 3 = 252,
10/84 = 10 × 3/84 × 3 = 30/252 - Likewise, for the 2nd fraction, since 9 × 28 = 252,
7/9 = 7 × 28/9 × 28 = 196/252 - Subtract the two like fractions:
30/252 - 196/252 = 30 - 196/252 = -166/252 - After reducing the fraction, the answer is -83/126
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/84-7/9 10/84-14/9 10/84-7/18 30/84-7/9 10/84-21/9 10/84-7/27 50/84-7/9 10/84-35/9 10/84-7/45 70/84-7/9 10/84-49/9 10/84-7/63