Subtract 60/9 from 6/42, Solve 6/42

Subtract 60/9 from 6/42

1^st number: 6/42, 2^nd number: 6 6/9

6/42 - 60/9 is -137/21.

Find the least common denominator or LCM of the two denominators:
LCM of 42 and 9 is 126

Next, find the equivalent fraction of both fractional numbers with denominator 126
For the 1st fraction, since 42 × 3 = 126,
6/42 = 6 × 3/42 × 3 = 18/126
Likewise, for the 2nd fraction, since 9 × 14 = 126,
60/9 = 60 × 14/9 × 14 = 840/126
Subtract the two like fractions:
18/126 - 840/126 = 18 - 840/126 = -822/126
After reducing the fraction, the answer is -137/21

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