Subtract 54/49 from 28/45
1st number: 28/45, 2nd number: 1 5/49
28/45 - 54/49 is -1058/2205.
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,
28/45 = 28 × 49/45 × 49 = 1372/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
54/49 = 54 × 45/49 × 45 = 2430/2205 - Subtract the two like fractions:
1372/2205 - 2430/2205 = 1372 - 2430/2205 = -1058/2205
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 56/45-54/49 28/90-54/49 28/45-54/98 84/45-54/49