Subtract 15/6 from 18/70
1st number: 18/70, 2nd number: 2 3/6
18/70 - 15/6 is -157/70.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 6 is 210
Next, find the equivalent fraction of both fractional numbers with denominator 210 - For the 1st fraction, since 70 × 3 = 210,
18/70 = 18 × 3/70 × 3 = 54/210 - Likewise, for the 2nd fraction, since 6 × 35 = 210,
15/6 = 15 × 35/6 × 35 = 525/210 - Subtract the two like fractions:
54/210 - 525/210 = 54 - 525/210 = -471/210 - After reducing the fraction, the answer is -157/70
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/70-15/6 18/70-30/6 18/70-15/12 54/70-15/6 18/70-45/6 18/70-15/18 90/70-15/6 18/70-75/6 18/70-15/30 18/70-15/42