Subtract 45/49 from 21/6, Solve 3 3/6

Subtract 45/49 from 21/6

1^st number: 3 3/6, 2^nd number: 45/49

21/6 - 45/49 is 253/98.

Find the least common denominator or LCM of the two denominators:
LCM of 6 and 49 is 294

Next, find the equivalent fraction of both fractional numbers with denominator 294
For the 1st fraction, since 6 × 49 = 294,
21/6 = 21 × 49/6 × 49 = 1029/294
Likewise, for the 2nd fraction, since 49 × 6 = 294,
45/49 = 45 × 6/49 × 6 = 270/294
Subtract the two like fractions:
1029/294 - 270/294 = 1029 - 270/294 = 759/294
After reducing the fraction, the answer is 253/98
In mixed form: 257/98

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