Subtract 7/25 from 42/12
1st number: 3 6/12, 2nd number: 7/25
42/12 - 7/25 is 161/50.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 25 is 300
Next, find the equivalent fraction of both fractional numbers with denominator 300 - For the 1st fraction, since 12 × 25 = 300,
42/12 = 42 × 25/12 × 25 = 1050/300 - Likewise, for the 2nd fraction, since 25 × 12 = 300,
7/25 = 7 × 12/25 × 12 = 84/300 - Subtract the two like fractions:
1050/300 - 84/300 = 1050 - 84/300 = 966/300 - After reducing the fraction, the answer is 161/50
- In mixed form: 311/50
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-7/25 42/12-14/25 42/24-7/25 42/12-7/50 42/12-21/25 42/36-7/25 42/12-7/75 42/12-35/25 42/60-7/25 42/12-49/25 42/84-7/25