Subtract 21/27 from 45/49, Solve 45/49

Subtract 21/27 from 45/49

45/49 - 21/27 is 62/441.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 27 is 1323

Next, find the equivalent fraction of both fractional numbers with denominator 1323
For the 1st fraction, since 49 × 27 = 1323,
45/49 = 45 × 27/49 × 27 = 1215/1323
Likewise, for the 2nd fraction, since 27 × 49 = 1323,
21/27 = 21 × 49/27 × 49 = 1029/1323
Subtract the two like fractions:
1215/1323 - 1029/1323 = 1215 - 1029/1323 = 186/1323
After reducing the fraction, the answer is 62/441

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