Subtract 84/12 from 1/28
1st number: 1/28, 2nd number: 7 0/12
1/28 - 84/12 is -195/28.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 28 and 12 is 84
Next, find the equivalent fraction of both fractional numbers with denominator 84 - For the 1st fraction, since 28 × 3 = 84,
1/28 = 1 × 3/28 × 3 = 3/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
84/12 = 84 × 7/12 × 7 = 588/84 - Subtract the two like fractions:
3/84 - 588/84 = 3 - 588/84 = -585/84 - After reducing the fraction, the answer is -195/28
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 2/28-84/12 1/56-84/12 1/28-84/24 3/28-84/12 1/84-84/12 1/28-84/36 5/28-84/12 1/28-84/60 7/28-84/12