Subtract 21/50 from 90/3
1st number: 30 0/3, 2nd number: 21/50
90/3 - 21/50 is 1479/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 3 and 50 is 150
Next, find the equivalent fraction of both fractional numbers with denominator 150 - For the 1st fraction, since 3 × 50 = 150,
90/3 = 90 × 50/3 × 50 = 4500/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
21/50 = 21 × 3/50 × 3 = 63/150 - Subtract the two like fractions:
4500/150 - 63/150 = 4500 - 63/150 = 4437/150 - After reducing the fraction, the answer is 1479/50
- In mixed form: 2929/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 90/3-42/50 90/6-21/50 90/3-63/50 90/9-21/50 90/15-21/50 90/21-21/50