Subtract 70/18 from 15/2
1st number: 7 1/2, 2nd number: 3 16/18
15/2 - 70/18 is 65/18.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 18 is 18
Next, find the equivalent fraction of both fractional numbers with denominator 18 - For the 1st fraction, since 2 × 9 = 18,
15/2 = 15 × 9/2 × 9 = 135/18 - Likewise, for the 2nd fraction, since 18 × 1 = 18,
70/18 = 70 × 1/18 × 1 = 70/18 - Subtract the two like fractions:
135/18 - 70/18 = 135 - 70/18 = 65/18 - In mixed form: 311/18
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/2-70/18 15/4-70/18 15/2-70/36 45/2-70/18 15/6-70/18 15/2-70/54 75/2-70/18 15/10-70/18 15/2-70/90 15/14-70/18