Subtract 4/90 from 75/6
1st number: 12 3/6, 2nd number: 4/90
75/6 - 4/90 is 1121/90.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 6 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 6 × 15 = 90,
75/6 = 75 × 15/6 × 15 = 1125/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
4/90 = 4 × 1/90 × 1 = 4/90 - Subtract the two like fractions:
1125/90 - 4/90 = 1125 - 4/90 = 1121/90 - In mixed form: 1241/90
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 75/6-8/90 75/12-4/90 75/6-12/90 75/18-4/90 75/6-20/90 75/30-4/90 75/6-28/90 75/42-4/90