Subtract 36/18 from 49/40
1st number: 1 9/40, 2nd number: 2 0/18
49/40 - 36/18 is -31/40.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 18 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
49/40 = 49 × 9/40 × 9 = 441/360 - Likewise, for the 2nd fraction, since 18 × 20 = 360,
36/18 = 36 × 20/18 × 20 = 720/360 - Subtract the two like fractions:
441/360 - 720/360 = 441 - 720/360 = -279/360 - After reducing the fraction, the answer is -31/40
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 98/40-36/18 49/40-72/18 49/80-36/18 49/40-36/54 49/40-36/90