Subtract 8/3 from 15/70
1st number: 15/70, 2nd number: 2 2/3
15/70 - 8/3 is -103/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 3 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
15/70 = 15 × 3/70 × 3 = 45/210 - Likewise, for the 2nd fraction, since 3 × 70 = 210,
8/3 = 8 × 70/3 × 70 = 560/210 - Subtract the two like fractions:
45/210 - 560/210 = 45 - 560/210 = -515/210 - After reducing the fraction, the answer is -103/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/70-8/3 15/70-16/3 15/70-8/6 45/70-8/3 15/70-24/3 15/70-8/9 75/70-8/3 15/70-40/3 15/70-8/15 15/70-56/3 15/70-8/21