Subtract 70/40 from 10/12
1st number: 10/12, 2nd number: 1 30/40
10/12 - 70/40 is -11/12.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 40 is 120
Next, find the equivalent fraction of both fractional numbers with denominator 120 - For the 1st fraction, since 12 × 10 = 120,
10/12 = 10 × 10/12 × 10 = 100/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
70/40 = 70 × 3/40 × 3 = 210/120 - Subtract the two like fractions:
100/120 - 210/120 = 100 - 210/120 = -110/120 - After reducing the fraction, the answer is -11/12
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 20/12-70/40 10/24-70/40 10/12-70/80 30/12-70/40 10/36-70/40 50/12-70/40 10/60-70/40 70/12-70/40 10/84-70/40