Subtract 27/12 from 49/28
1st number: 1 21/28, 2nd number: 2 3/12
49/28 - 27/12 is -1/2.
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,
49/28 = 49 × 3/28 × 3 = 147/84 - Likewise, for the 2nd fraction, since 12 × 7 = 84,
27/12 = 27 × 7/12 × 7 = 189/84 - Subtract the two like fractions:
147/84 - 189/84 = 147 - 189/84 = -42/84 - After reducing the fraction, the answer is -1/2
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/28-27/12 49/28-54/12 49/56-27/12 49/28-27/24 49/28-81/12 49/84-27/12 49/28-27/36 49/28-27/60 49/28-27/84