Subtract 16/20 from 27/49
27/49 - 16/20 is -61/245.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 20 is 980
Next, find the equivalent fraction of both fractional numbers with denominator 980 - For the 1st fraction, since 49 × 20 = 980,
27/49 = 27 × 20/49 × 20 = 540/980 - Likewise, for the 2nd fraction, since 20 × 49 = 980,
16/20 = 16 × 49/20 × 49 = 784/980 - Subtract the two like fractions:
540/980 - 784/980 = 540 - 784/980 = -244/980 - After reducing the fraction, the answer is -61/245
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/49-16/20 27/49-32/20 27/98-16/20 27/49-16/40 81/49-16/20 27/49-48/20 27/49-16/60 27/49-80/20