Subtract 42/8 from 8/27, Solve 8/27

Subtract 42/8 from 8/27

1^st number: 8/27, 2^nd number: 5 2/8

8/27 - 42/8 is -535/108.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 8 is 216

Next, find the equivalent fraction of both fractional numbers with denominator 216
For the 1st fraction, since 27 × 8 = 216,
8/27 = 8 × 8/27 × 8 = 64/216
Likewise, for the 2nd fraction, since 8 × 27 = 216,
42/8 = 42 × 27/8 × 27 = 1134/216
Subtract the two like fractions:
64/216 - 1134/216 = 64 - 1134/216 = -1070/216
After reducing the fraction, the answer is -535/108

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