Subtract 25/50 from 21/3
1st number: 7 0/3, 2nd number: 25/50
21/3 - 25/50 is 13/2.
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,
21/3 = 21 × 50/3 × 50 = 1050/150 - Likewise, for the 2nd fraction, since 50 × 3 = 150,
25/50 = 25 × 3/50 × 3 = 75/150 - Subtract the two like fractions:
1050/150 - 75/150 = 1050 - 75/150 = 975/150 - After reducing the fraction, the answer is 13/2
- In mixed form: 61/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 42/3-25/50 21/6-25/50 63/3-25/50 21/3-75/50 21/9-25/50 21/15-25/50