Subtract 40/49 from 40/45
40/45 - 40/49 is 32/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 45 and 49 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 45 × 49 = 2205,
40/45 = 40 × 49/45 × 49 = 1960/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
40/49 = 40 × 45/49 × 45 = 1800/2205 - Subtract the two like fractions:
1960/2205 - 1800/2205 = 1960 - 1800/2205 = 160/2205 - After reducing the fraction, the answer is 32/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 80/45-40/49 40/45-80/49 40/90-40/49 40/45-40/98