Subtract 21/50 from 40/12
1st number: 3 4/12, 2nd number: 21/50
40/12 - 21/50 is 437/150.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 50 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
40/12 = 40 × 25/12 × 25 = 1000/300 - Likewise, for the 2nd fraction, since 50 × 6 = 300,
21/50 = 21 × 6/50 × 6 = 126/300 - Subtract the two like fractions:
1000/300 - 126/300 = 1000 - 126/300 = 874/300 - After reducing the fraction, the answer is 437/150
- In mixed form: 2137/150
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/12-21/50 40/12-42/50 40/24-21/50 40/12-63/50 40/36-21/50 40/60-21/50 40/84-21/50