Subtract 40/45 from 16/49
16/49 - 40/45 is -248/441.
Steps for subtracting fractions
- Find the least common denominator or LCM of the two denominators:
LCM of 49 and 45 is 2205
Next, find the equivalent fraction of both fractional numbers with denominator 2205 - For the 1st fraction, since 49 × 45 = 2205,
16/49 = 16 × 45/49 × 45 = 720/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
40/45 = 40 × 49/45 × 49 = 1960/2205 - Subtract the two like fractions:
720/2205 - 1960/2205 = 720 - 1960/2205 = -1240/2205 - After reducing the fraction, the answer is -248/441
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 32/49-40/45 16/49-80/45 16/98-40/45 16/49-40/90 48/49-40/45 80/49-40/45