Subtract 18/40 from 70/12
1st number: 5 10/12, 2nd number: 18/40
70/12 - 18/40 is 323/60.
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,
70/12 = 70 × 10/12 × 10 = 700/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
18/40 = 18 × 3/40 × 3 = 54/120 - Subtract the two like fractions:
700/120 - 54/120 = 700 - 54/120 = 646/120 - After reducing the fraction, the answer is 323/60
- In mixed form: 523/60
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 70/12-36/40 70/24-18/40 70/12-18/80 70/12-54/40 70/36-18/40 70/12-90/40 70/60-18/40 70/84-18/40