Subtract 12/70 from 15/7
1st number: 2 1/7, 2nd number: 12/70
15/7 - 12/70 is 69/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 70 is 70
Next, find the equivalent fraction of both fractional numbers with denominator 70 - For the 1st fraction, since 7 × 10 = 70,
15/7 = 15 × 10/7 × 10 = 150/70 - Likewise, for the 2nd fraction, since 70 × 1 = 70,
12/70 = 12 × 1/70 × 1 = 12/70 - Subtract the two like fractions:
150/70 - 12/70 = 150 - 12/70 = 138/70 - After reducing the fraction, the answer is 69/35
- In mixed form: 134/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 30/7-12/70 15/7-24/70 15/14-12/70 45/7-12/70 15/7-36/70 15/21-12/70 75/7-12/70 15/7-60/70 15/35-12/70 15/7-84/70 15/49-12/70