Subtract 36/49 from 27/40
27/40 - 36/49 is -117/1960.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 49 is 1960
Next, find the equivalent fraction of both fractional numbers with denominator 1960 - For the 1st fraction, since 40 × 49 = 1960,
27/40 = 27 × 49/40 × 49 = 1323/1960 - Likewise, for the 2nd fraction, since 49 × 40 = 1960,
36/49 = 36 × 40/49 × 40 = 1440/1960 - Subtract the two like fractions:
1323/1960 - 1440/1960 = 1323 - 1440/1960 = -117/1960
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 54/40-36/49 27/40-72/49 27/80-36/49 27/40-36/98 81/40-36/49