Subtract 30/70 from 25/2
1st number: 12 1/2, 2nd number: 30/70
25/2 - 30/70 is 169/14.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 2 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 2 × 35 = 70,
25/2 = 25 × 35/2 × 35 = 875/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
30/70 = 30 × 1/70 × 1 = 30/70 - Subtract the two like fractions:
875/70 - 30/70 = 875 - 30/70 = 845/70 - After reducing the fraction, the answer is 169/14
- In mixed form: 121/14
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 50/2-30/70 25/2-60/70 25/4-30/70 75/2-30/70 25/2-90/70 25/6-30/70 25/10-30/70 25/14-30/70