Subtract 42/7 from 25/2
1st number: 12 1/2, 2nd number: 6 0/7
25/2 - 42/7 is 13/2.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 7 is 14
Next, find the equivalent fraction of both fractional numbers with denominator 14 - For the 1st fraction, since 2 × 7 = 14,
25/2 = 25 × 7/2 × 7 = 175/14 - Likewise, for the 2nd fraction, since 7 × 2 = 14,
42/7 = 42 × 2/7 × 2 = 84/14 - Subtract the two like fractions:
175/14 - 84/14 = 175 - 84/14 = 91/14 - 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: 50/2-42/7 25/2-84/7 25/4-42/7 25/2-42/14 75/2-42/7 25/6-42/7 25/2-42/21 25/10-42/7 25/2-42/35 25/14-42/7 25/2-42/49