Subtract 49/28 from 6/9, Solve 6/9 - 1 21/28 as a fraction

Subtract 49/28 from 6/9

1^st number: 6/9, 2^nd number: 1 21/28

6/9 - 49/28 is -13/12.

Find the least common denominator or LCM of the two denominators:
LCM of 9 and 28 is 252

Next, find the equivalent fraction of both fractional numbers with denominator 252
For the 1st fraction, since 9 × 28 = 252,
6/9 = 6 × 28/9 × 28 = 168/252
Likewise, for the 2nd fraction, since 28 × 9 = 252,
49/28 = 49 × 9/28 × 9 = 441/252
Subtract the two like fractions:
168/252 - 441/252 = 168 - 441/252 = -273/252
After reducing the fraction, the answer is -13/12

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