Subtract 7/49 from 7/45, Solve 7/45

Subtract 7/49 from 7/45

7/45 - 7/49 is 4/315.

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,
7/45 = 7 × 49/45 × 49 = 343/2205
Likewise, for the 2nd fraction, since 49 × 45 = 2205,
7/49 = 7 × 45/49 × 45 = 315/2205
Subtract the two like fractions:
343/2205 - 315/2205 = 343 - 315/2205 = 28/2205
After reducing the fraction, the answer is 4/315

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