Subtract 27/12 from 49/70
1st number: 49/70, 2nd number: 2 3/12
49/70 - 27/12 is -31/20.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 70 and 12 is 420
Next, find the equivalent fraction of both fractional numbers with denominator 420 - For the 1st fraction, since 70 × 6 = 420,
49/70 = 49 × 6/70 × 6 = 294/420 - Likewise, for the 2nd fraction, since 12 × 35 = 420,
27/12 = 27 × 35/12 × 35 = 945/420 - Subtract the two like fractions:
294/420 - 945/420 = 294 - 945/420 = -651/420 - After reducing the fraction, the answer is -31/20
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/70-27/12 49/70-54/12 49/70-27/24 49/70-81/12 49/70-27/36 49/70-27/60 49/70-27/84