Subtract 21/90 from 10/6
1st number: 1 4/6, 2nd number: 21/90
10/6 - 21/90 is 43/30.
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,
10/6 = 10 × 15/6 × 15 = 150/90 - Likewise, for the 2nd fraction, since 90 × 1 = 90,
21/90 = 21 × 1/90 × 1 = 21/90 - Subtract the two like fractions:
150/90 - 21/90 = 150 - 21/90 = 129/90 - After reducing the fraction, the answer is 43/30
- In mixed form: 113/30
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/6-21/90 10/6-42/90 10/12-21/90 30/6-21/90 10/6-63/90 10/18-21/90 50/6-21/90 10/30-21/90 70/6-21/90 10/42-21/90