Subtract 6/90 from 12/5
1st number: 2 2/5, 2nd number: 6/90
12/5 - 6/90 is 7/3.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 5 and 90 is 90
Next, find the equivalent fraction of both fractional numbers with denominator 90 - For the 1st fraction, since 5 × 18 = 90,
12/5 = 12 × 18/5 × 18 = 216/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
6/90 = 6 × 1/90 × 1 = 6/90 - Subtract the two like fractions:
216/90 - 6/90 = 216 - 6/90 = 210/90 - After reducing the fraction, the answer is 7/3
- In mixed form: 21/3
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/5-6/90 12/5-12/90 12/10-6/90 36/5-6/90 12/5-18/90 12/15-6/90 60/5-6/90 12/5-30/90 12/25-6/90 84/5-6/90 12/5-42/90 12/35-6/90