Subtract 15/18 from 16/7
1st number: 2 2/7, 2nd number: 15/18
16/7 - 15/18 is 61/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 18 is 126
Next, find the equivalent fraction of both fractional numbers with denominator 126 - For the 1st fraction, since 7 × 18 = 126,
16/7 = 16 × 18/7 × 18 = 288/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
15/18 = 15 × 7/18 × 7 = 105/126 - Subtract the two like fractions:
288/126 - 105/126 = 288 - 105/126 = 183/126 - After reducing the fraction, the answer is 61/42
- In mixed form: 119/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/7-15/18 16/7-30/18 16/14-15/18 16/7-15/36 48/7-15/18 16/7-45/18 16/21-15/18 16/7-15/54 80/7-15/18 16/7-75/18 16/35-15/18 16/7-15/90 16/49-15/18