Subtract 12/40 from 70/7
1st number: 10 0/7, 2nd number: 12/40
70/7 - 12/40 is 97/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 7 and 40 is 280
Next, find the equivalent fraction of both fractional numbers with denominator 280 - For the 1st fraction, since 7 × 40 = 280,
70/7 = 70 × 40/7 × 40 = 2800/280 - Likewise, for the 2nd fraction, since 40 × 7 = 280,
12/40 = 12 × 7/40 × 7 = 84/280 - Subtract the two like fractions:
2800/280 - 84/280 = 2800 - 84/280 = 2716/280 - After reducing the fraction, the answer is 97/10
- In mixed form: 97/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/7-24/40 70/14-12/40 70/7-12/80 70/7-36/40 70/21-12/40 70/7-60/40 70/35-12/40 70/7-84/40 70/49-12/40