Subtract 84/3 from 1/90
1st number: 1/90, 2nd number: 28 0/3
1/90 - 84/3 is -2519/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 90 and 3 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 90 × 1 = 90,
1/90 = 1 × 1/90 × 1 = 1/90 - Likewise, for the 2nd fraction, since 3 × 30 = 90,
84/3 = 84 × 30/3 × 30 = 2520/90 - Subtract the two like fractions:
1/90 - 2520/90 = 1 - 2520/90 = -2519/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/90-84/3 1/90-84/6 3/90-84/3 1/90-84/9 5/90-84/3 1/90-84/15 7/90-84/3 1/90-84/21