Subtract 50/8 from 16/42, Solve 16/42

Subtract 50/8 from 16/42

1^st number: 16/42, 2^nd number: 6 2/8

16/42 - 50/8 is -493/84.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 8 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 42 × 4 = 168,
16/42 = 16 × 4/42 × 4 = 64/168
Likewise, for the 2nd fraction, since 8 × 21 = 168,
50/8 = 50 × 21/8 × 21 = 1050/168
Subtract the two like fractions:
64/168 - 1050/168 = 64 - 1050/168 = -986/168
After reducing the fraction, the answer is -493/84

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