Subtract 12/40 from 84/12
1st number: 7 0/12, 2nd number: 12/40
84/12 - 12/40 is 67/10.
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,
84/12 = 84 × 10/12 × 10 = 840/120 - Likewise, for the 2nd fraction, since 40 × 3 = 120,
12/40 = 12 × 3/40 × 3 = 36/120 - Subtract the two like fractions:
840/120 - 36/120 = 840 - 36/120 = 804/120 - After reducing the fraction, the answer is 67/10
- In mixed form: 67/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 84/12-24/40 84/24-12/40 84/12-12/80 84/12-36/40 84/36-12/40 84/12-60/40 84/60-12/40 84/12-84/40