Subtract 42/6 from 3/56, Solve 3/56

Subtract 42/6 from 3/56

1^st number: 3/56, 2^nd number: 7 0/6

3/56 - 42/6 is -389/56.

Find the least common denominator or LCM of the two denominators:
LCM of 56 and 6 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 56 × 3 = 168,
3/56 = 3 × 3/56 × 3 = 9/168
Likewise, for the 2nd fraction, since 6 × 28 = 168,
42/6 = 42 × 28/6 × 28 = 1176/168
Subtract the two like fractions:
9/168 - 1176/168 = 9 - 1176/168 = -1167/168
After reducing the fraction, the answer is -389/56

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