Subtract 84/6 from 20/90
1st number: 20/90, 2nd number: 14 0/6
20/90 - 84/6 is -124/9.
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,
20/90 = 20 × 1/90 × 1 = 20/90 - Likewise, for the 2nd fraction, since 6 × 15 = 90,
84/6 = 84 × 15/6 × 15 = 1260/90 - Subtract the two like fractions:
20/90 - 1260/90 = 20 - 1260/90 = -1240/90 - After reducing the fraction, the answer is -124/9
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 40/90-84/6 20/90-84/12 60/90-84/6 20/90-84/18 20/90-84/30 20/90-84/42