Subtract 84/36 from 8/90
1st number: 8/90, 2nd number: 2 12/36
8/90 - 84/36 is -101/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 36 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 90 × 2 = 180,
8/90 = 8 × 2/90 × 2 = 16/180 - Likewise, for the 2nd fraction, since 36 × 5 = 180,
84/36 = 84 × 5/36 × 5 = 420/180 - Subtract the two like fractions:
16/180 - 420/180 = 16 - 420/180 = -404/180 - After reducing the fraction, the answer is -101/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90-84/36 8/90-84/72 24/90-84/36 40/90-84/36 56/90-84/36