Subtract 12/15 from 70/9
1st number: 7 7/9, 2nd number: 12/15
70/9 - 12/15 is 314/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 9 and 15 is 45
Next, find the equivalent fraction of both fractional numbers with denominator 45 - For the 1st fraction, since 9 × 5 = 45,
70/9 = 70 × 5/9 × 5 = 350/45 - Likewise, for the 2nd fraction, since 15 × 3 = 45,
12/15 = 12 × 3/15 × 3 = 36/45 - Subtract the two like fractions:
350/45 - 36/45 = 350 - 36/45 = 314/45 - In mixed form: 644/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/9-24/15 70/18-12/15 70/9-12/30 70/9-36/15 70/27-12/15 70/9-12/45 70/9-60/15 70/45-12/15 70/9-12/75 70/9-84/15 70/63-12/15