Subtract 9/49 from 42/27, Solve 1 15/27

Subtract 9/49 from 42/27

1^st number: 1 15/27, 2^nd number: 9/49

42/27 - 9/49 is 605/441.

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

Next, find the equivalent fraction of both fractional numbers with denominator 1323
For the 1st fraction, since 27 × 49 = 1323,
42/27 = 42 × 49/27 × 49 = 2058/1323
Likewise, for the 2nd fraction, since 49 × 27 = 1323,
9/49 = 9 × 27/49 × 27 = 243/1323
Subtract the two like fractions:
2058/1323 - 243/1323 = 2058 - 243/1323 = 1815/1323
After reducing the fraction, the answer is 605/441
In mixed form: 1164/441

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