Subtract 9/70 from 18/12
1st number: 1 6/12, 2nd number: 9/70
18/12 - 9/70 is 48/35.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 12 and 70 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 70 × 6 = 420,
9/70 = 9 × 6/70 × 6 = 54/420 - Subtract the two like fractions:
630/420 - 54/420 = 630 - 54/420 = 576/420 - After reducing the fraction, the answer is 48/35
- In mixed form: 113/35
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 36/12-9/70 18/12-18/70 18/24-9/70 54/12-9/70 18/12-27/70 18/36-9/70 90/12-9/70 18/12-45/70 18/60-9/70 18/12-63/70 18/84-9/70