Subtract 70/49 from 4/6, Solve 4/6 - 1 21/49 as a fraction

Subtract 70/49 from 4/6

1^st number: 4/6, 2^nd number: 1 21/49

4/6 - 70/49 is -16/21.

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,
4/6 = 4 × 49/6 × 49 = 196/294
Likewise, for the 2nd fraction, since 49 × 6 = 294,
70/49 = 70 × 6/49 × 6 = 420/294
Subtract the two like fractions:
196/294 - 420/294 = 196 - 420/294 = -224/294
After reducing the fraction, the answer is -16/21

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