Subtract 4/49 from 12/45
12/45 - 4/49 is 136/735.
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,
12/45 = 12 × 49/45 × 49 = 588/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
4/49 = 4 × 45/49 × 45 = 180/2205 - Subtract the two like fractions:
588/2205 - 180/2205 = 588 - 180/2205 = 408/2205 - After reducing the fraction, the answer is 136/735
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 24/45-4/49 12/45-8/49 12/90-4/49 12/45-4/98 36/45-4/49 12/45-12/49 60/45-4/49 12/45-20/49 84/45-4/49 12/45-28/49