Subtract 12/90 from 30/6
1st number: 5 0/6, 2nd number: 12/90
30/6 - 12/90 is 73/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
30/6 = 30 × 15/6 × 15 = 450/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
12/90 = 12 × 1/90 × 1 = 12/90 - Subtract the two like fractions:
450/90 - 12/90 = 450 - 12/90 = 438/90 - After reducing the fraction, the answer is 73/15
- In mixed form: 413/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/6-12/90 30/6-24/90 30/12-12/90 90/6-12/90 30/6-36/90 30/18-12/90 30/6-60/90 30/6-84/90 30/42-12/90