Subtract 30/36 from 28/7
1st number: 4 0/7, 2nd number: 30/36
28/7 - 30/36 is 19/6.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 36 is 252
Next, find the equivalent fraction of both fractional numbers with denominator 252 - For the 1st fraction, since 7 × 36 = 252,
28/7 = 28 × 36/7 × 36 = 1008/252 - Likewise, for the 2nd fraction, since 36 × 7 = 252,
30/36 = 30 × 7/36 × 7 = 210/252 - Subtract the two like fractions:
1008/252 - 210/252 = 1008 - 210/252 = 798/252 - After reducing the fraction, the answer is 19/6
- In mixed form: 31/6
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/7-30/36 28/7-60/36 28/14-30/36 28/7-30/72 84/7-30/36 28/7-90/36 28/21-30/36 28/35-30/36 28/49-30/36