Subtract 12/45 from 5/49
5/49 - 12/45 is -121/735.
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,
5/49 = 5 × 45/49 × 45 = 225/2205 - Likewise, for the 2nd fraction, since 45 × 49 = 2205,
12/45 = 12 × 49/45 × 49 = 588/2205 - Subtract the two like fractions:
225/2205 - 588/2205 = 225 - 588/2205 = -363/2205 - After reducing the fraction, the answer is -121/735
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 10/49-12/45 5/49-24/45 5/98-12/45 5/49-12/90 15/49-12/45 5/49-36/45 25/49-12/45 5/49-60/45 35/49-12/45 5/49-84/45