Subtract 15/45 from 28/49, Solve 28/49

Subtract 15/45 from 28/49

28/49 - 15/45 is 5/21.

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,
28/49 = 28 × 45/49 × 45 = 1260/2205
Likewise, for the 2nd fraction, since 45 × 49 = 2205,
15/45 = 15 × 49/45 × 49 = 735/2205
Subtract the two like fractions:
1260/2205 - 735/2205 = 1260 - 735/2205 = 525/2205
After reducing the fraction, the answer is 5/21

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