Subtract 20/27 from 4/49
4/49 - 20/27 is -872/1323.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 27 is 1323
Next, find the equivalent fraction of both fractional numbers with denominator 1323 - For the 1st fraction, since 49 × 27 = 1323,
4/49 = 4 × 27/49 × 27 = 108/1323 - Likewise, for the 2nd fraction, since 27 × 49 = 1323,
20/27 = 20 × 49/27 × 49 = 980/1323 - Subtract the two like fractions:
108/1323 - 980/1323 = 108 - 980/1323 = -872/1323
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 8/49-20/27 4/49-40/27 4/98-20/27 4/49-20/54 12/49-20/27 4/49-60/27 4/49-20/81 20/49-20/27 28/49-20/27