Subtract 12/90 from 36/2
1st number: 18 0/2, 2nd number: 12/90
36/2 - 12/90 is 268/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 2 × 45 = 90,
36/2 = 36 × 45/2 × 45 = 1620/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
12/90 = 12 × 1/90 × 1 = 12/90 - Subtract the two like fractions:
1620/90 - 12/90 = 1620 - 12/90 = 1608/90 - After reducing the fraction, the answer is 268/15
- In mixed form: 1713/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 72/2-12/90 36/2-24/90 36/4-12/90 36/2-36/90 36/6-12/90 36/2-60/90 36/10-12/90 36/2-84/90 36/14-12/90