Subtract 25/36 from 8/40
8/40 - 25/36 is -89/180.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 40 and 36 is 360
Next, find the equivalent fraction of both fractional numbers with denominator 360 - For the 1st fraction, since 40 × 9 = 360,
8/40 = 8 × 9/40 × 9 = 72/360 - Likewise, for the 2nd fraction, since 36 × 10 = 360,
25/36 = 25 × 10/36 × 10 = 250/360 - Subtract the two like fractions:
72/360 - 250/360 = 72 - 250/360 = -178/360 - After reducing the fraction, the answer is -89/180
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 16/40-25/36 8/40-50/36 8/80-25/36 8/40-25/72 24/40-25/36 8/40-75/36 56/40-25/36