Subtract 70/9 from 8/12
1st number: 8/12, 2nd number: 7 7/9
8/12 - 70/9 is -64/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 9 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 12 × 3 = 36,
8/12 = 8 × 3/12 × 3 = 24/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
70/9 = 70 × 4/9 × 4 = 280/36 - Subtract the two like fractions:
24/36 - 280/36 = 24 - 280/36 = -256/36 - After reducing the fraction, the answer is -64/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/12-70/9 8/24-70/9 8/12-70/18 24/12-70/9 8/36-70/9 8/12-70/27 40/12-70/9 8/60-70/9 8/12-70/45 56/12-70/9 8/84-70/9 8/12-70/63