Subtract 84/54 from 8/90
1st number: 8/90, 2nd number: 1 30/54
8/90 - 84/54 is -22/15.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 54 is 270
Next, find the equivalent fraction of both fractional numbers with denominator 270 - For the 1st fraction, since 90 × 3 = 270,
8/90 = 8 × 3/90 × 3 = 24/270 - Likewise, for the 2nd fraction, since 54 × 5 = 270,
84/54 = 84 × 5/54 × 5 = 420/270 - Subtract the two like fractions:
24/270 - 420/270 = 24 - 420/270 = -396/270 - After reducing the fraction, the answer is -22/15
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90-84/54 24/90-84/54 40/90-84/54 56/90-84/54