Subtract 21/27 from 84/8, Solve 10 4/8

Subtract 21/27 from 84/8

1^st number: 10 4/8, 2^nd number: 21/27

84/8 - 21/27 is 175/18.

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,
84/8 = 84 × 27/8 × 27 = 2268/216
Likewise, for the 2nd fraction, since 27 × 8 = 216,
21/27 = 21 × 8/27 × 8 = 168/216
Subtract the two like fractions:
2268/216 - 168/216 = 2268 - 168/216 = 2100/216
After reducing the fraction, the answer is 175/18
In mixed form: 913/18

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