Subtract 84/35 from 18/12
1st number: 1 6/12, 2nd number: 2 14/35
18/12 - 84/35 is -9/10.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 35 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 12 × 35 = 420,
18/12 = 18 × 35/12 × 35 = 630/420 - Likewise, for the 2nd fraction, since 35 × 12 = 420,
84/35 = 84 × 12/35 × 12 = 1008/420 - Subtract the two like fractions:
630/420 - 1008/420 = 630 - 1008/420 = -378/420 - After reducing the fraction, the answer is -9/10
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12-84/35 18/24-84/35 18/12-84/70 54/12-84/35 18/36-84/35 90/12-84/35 18/60-84/35 18/84-84/35