Subtract 16/18 from 12/7
1st number: 1 5/7, 2nd number: 16/18
12/7 - 16/18 is 52/63.
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,
12/7 = 12 × 18/7 × 18 = 216/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
16/18 = 16 × 7/18 × 7 = 112/126 - Subtract the two like fractions:
216/126 - 112/126 = 216 - 112/126 = 104/126 - After reducing the fraction, the answer is 52/63
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/7-16/18 12/7-32/18 12/14-16/18 12/7-16/36 36/7-16/18 12/7-48/18 12/21-16/18 12/7-16/54 60/7-16/18 12/7-80/18 12/35-16/18 12/7-16/90 84/7-16/18 12/49-16/18