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

Subtract 90/27 from 8/90

1^st number: 8/90, 2^nd number: 3 9/27

8/90 - 90/27 is -146/45.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 27 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 90 × 3 = 270,
8/90 = 8 × 3/90 × 3 = 24/270
Likewise, for the 2nd fraction, since 27 × 10 = 270,
90/27 = 90 × 10/27 × 10 = 900/270
Subtract the two like fractions:
24/270 - 900/270 = 24 - 900/270 = -876/270
After reducing the fraction, the answer is -146/45

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