Subtract 28/36 from 30/2
1st number: 15 0/2, 2nd number: 28/36
30/2 - 28/36 is 128/9.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 36 is 36
Next, find the equivalent fraction of both fractional numbers with denominator 36 - For the 1st fraction, since 2 × 18 = 36,
30/2 = 30 × 18/2 × 18 = 540/36 - Likewise, for the 2nd fraction, since 36 × 1 = 36,
28/36 = 28 × 1/36 × 1 = 28/36 - Subtract the two like fractions:
540/36 - 28/36 = 540 - 28/36 = 512/36 - After reducing the fraction, the answer is 128/9
- In mixed form: 142/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/2-28/36 30/2-56/36 30/4-28/36 30/2-28/72 90/2-28/36 30/2-84/36 30/6-28/36 30/10-28/36 30/14-28/36