Subtract 1/90 from 30/3
1st number: 10 0/3, 2nd number: 1/90
30/3 - 1/90 is 899/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 3 × 30 = 90,
30/3 = 30 × 30/3 × 30 = 900/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
1/90 = 1 × 1/90 × 1 = 1/90 - Subtract the two like fractions:
900/90 - 1/90 = 900 - 1/90 = 899/90 - In mixed form: 989/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/3-1/90 30/3-2/90 30/6-1/90 90/3-1/90 30/3-3/90 30/9-1/90 30/3-5/90 30/15-1/90 30/3-7/90 30/21-1/90