Subtract 30/90 from 36/12
1st number: 3 0/12, 2nd number: 30/90
36/12 - 30/90 is 8/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 12 × 15 = 180,
36/12 = 36 × 15/12 × 15 = 540/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
30/90 = 30 × 2/90 × 2 = 60/180 - Subtract the two like fractions:
540/180 - 60/180 = 540 - 60/180 = 480/180 - After reducing the fraction, the answer is 8/3
- In mixed form: 22/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/12-30/90 36/12-60/90 36/24-30/90 36/60-30/90 36/84-30/90