Subtract 70/9 from 36/12
1st number: 3 0/12, 2nd number: 7 7/9
36/12 - 70/9 is -43/9.
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,
36/12 = 36 × 3/12 × 3 = 108/36 - Likewise, for the 2nd fraction, since 9 × 4 = 36,
70/9 = 70 × 4/9 × 4 = 280/36 - Subtract the two like fractions:
108/36 - 280/36 = 108 - 280/36 = -172/36 - After reducing the fraction, the answer is -43/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/12-70/9 36/24-70/9 36/12-70/18 36/12-70/27 36/60-70/9 36/12-70/45 36/84-70/9 36/12-70/63