Subtract 75/7 from 70/12
1st number: 5 10/12, 2nd number: 10 5/7
70/12 - 75/7 is -205/42.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 7 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 12 × 7 = 84,
70/12 = 70 × 7/12 × 7 = 490/84 - Likewise, for the 2nd fraction, since 7 × 12 = 84,
75/7 = 75 × 12/7 × 12 = 900/84 - Subtract the two like fractions:
490/84 - 900/84 = 490 - 900/84 = -410/84 - After reducing the fraction, the answer is -205/42
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/24-75/7 70/12-75/14 70/36-75/7 70/12-75/21 70/60-75/7 70/12-75/35 70/84-75/7 70/12-75/49