Subtract 30/3 from 30/90
1st number: 30/90, 2nd number: 10 0/3
30/90 - 30/3 is -29/3.
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,
30/90 = 30 × 1/90 × 1 = 30/90 - Likewise, for the 2nd fraction, since 3 × 30 = 90,
30/3 = 30 × 30/3 × 30 = 900/90 - Subtract the two like fractions:
30/90 - 900/90 = 30 - 900/90 = -870/90 - After reducing the fraction, the answer is -29/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/90-30/3 30/90-60/3 30/90-30/6 30/90-90/3 30/90-30/9 30/90-30/15 30/90-30/21