Subtract 16/84 from 90/8, Solve 11 2/8

Subtract 16/84 from 90/8

1^st number: 11 2/8, 2^nd number: 16/84

90/8 - 16/84 is 929/84.

Find the least common denominator or LCM of the two denominators:
LCM of 8 and 84 is 168

Next, find the equivalent fraction of both fractional numbers with denominator 168
For the 1st fraction, since 8 × 21 = 168,
90/8 = 90 × 21/8 × 21 = 1890/168
Likewise, for the 2nd fraction, since 84 × 2 = 168,
16/84 = 16 × 2/84 × 2 = 32/168
Subtract the two like fractions:
1890/168 - 32/168 = 1890 - 32/168 = 1858/168
After reducing the fraction, the answer is 929/84
In mixed form: 115/84

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