Subtract 90/8 from 1/27, Solve 1/27

Subtract 90/8 from 1/27

1^st number: 1/27, 2^nd number: 11 2/8

1/27 - 90/8 is -1211/108.

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,
1/27 = 1 × 8/27 × 8 = 8/216
Likewise, for the 2nd fraction, since 8 × 27 = 216,
90/8 = 90 × 27/8 × 27 = 2430/216
Subtract the two like fractions:
8/216 - 2430/216 = 8 - 2430/216 = -2422/216
After reducing the fraction, the answer is -1211/108

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