Subtract 18/6 from 8/90
1st number: 8/90, 2nd number: 3 0/6
8/90 - 18/6 is -131/45.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 6 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
8/90 = 8 × 1/90 × 1 = 8/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
18/6 = 18 × 15/6 × 15 = 270/90 - Subtract the two like fractions:
8/90 - 270/90 = 8 - 270/90 = -262/90 - After reducing the fraction, the answer is -131/45
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/90-18/6 8/90-36/6 8/90-18/12 24/90-18/6 8/90-54/6 40/90-18/6 8/90-90/6 8/90-18/30 56/90-18/6 8/90-18/42