Subtract 35/49 from 30/45
30/45 - 35/49 is -1/21.
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,
30/45 = 30 × 49/45 × 49 = 1470/2205 - Likewise, for the 2nd fraction, since 49 × 45 = 2205,
35/49 = 35 × 45/49 × 45 = 1575/2205 - Subtract the two like fractions:
1470/2205 - 1575/2205 = 1470 - 1575/2205 = -105/2205 - After reducing the fraction, the answer is -1/21
MathStep (Works offline)
Download our mobile app and learn to work with fractions in your own time:
Android and iPhone/ iPad
Related: 60/45-35/49 30/45-70/49 30/90-35/49 30/45-35/98 90/45-35/49