Subtract 25/27 from 30/8, Solve 3 6/8

Subtract 25/27 from 30/8

1^st number: 3 6/8, 2^nd number: 25/27

30/8 - 25/27 is 305/108.

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

Next, find the equivalent fraction of both fractional numbers with denominator 216
For the 1st fraction, since 8 × 27 = 216,
30/8 = 30 × 27/8 × 27 = 810/216
Likewise, for the 2nd fraction, since 27 × 8 = 216,
25/27 = 25 × 8/27 × 8 = 200/216
Subtract the two like fractions:
810/216 - 200/216 = 810 - 200/216 = 610/216
After reducing the fraction, the answer is 305/108
In mixed form: 289/108

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