Subtract 30/90 from 75/4
1st number: 18 3/4, 2nd number: 30/90
75/4 - 30/90 is 221/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 4 and 90 is 180
Next, find the equivalent fraction of both fractional numbers with denominator 180 - For the 1st fraction, since 4 × 45 = 180,
75/4 = 75 × 45/4 × 45 = 3375/180 - Likewise, for the 2nd fraction, since 90 × 2 = 180,
30/90 = 30 × 2/90 × 2 = 60/180 - Subtract the two like fractions:
3375/180 - 60/180 = 3375 - 60/180 = 3315/180 - After reducing the fraction, the answer is 221/12
- In mixed form: 185/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/4-60/90 75/8-30/90 75/12-30/90 75/20-30/90 75/28-30/90