Subtract 36/18 from 28/7
1st number: 4 0/7, 2nd number: 2 0/18
28/7 - 36/18 is 2/1.
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,
28/7 = 28 × 18/7 × 18 = 504/126 - Likewise, for the 2nd fraction, since 18 × 7 = 126,
36/18 = 36 × 7/18 × 7 = 252/126 - Subtract the two like fractions:
504/126 - 252/126 = 504 - 252/126 = 252/126 - After reducing the fraction, the answer is 2/1
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7-36/18 28/7-72/18 28/14-36/18 84/7-36/18 28/21-36/18 28/7-36/54 28/35-36/18 28/7-36/90 28/49-36/18