Subtract 21/9 from 4/49, Solve 4/49

Subtract 21/9 from 4/49

1^st number: 4/49, 2^nd number: 2 3/9

4/49 - 21/9 is -331/147.

Find the least common denominator or LCM of the two denominators:
LCM of 49 and 9 is 441

Next, find the equivalent fraction of both fractional numbers with denominator 441
For the 1st fraction, since 49 × 9 = 441,
4/49 = 4 × 9/49 × 9 = 36/441
Likewise, for the 2nd fraction, since 9 × 49 = 441,
21/9 = 21 × 49/9 × 49 = 1029/441
Subtract the two like fractions:
36/441 - 1029/441 = 36 - 1029/441 = -993/441
After reducing the fraction, the answer is -331/147

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