Subtract 72/27 from 4/8, Solve 4/8 - 2 18/27 as a fraction

Subtract 72/27 from 4/8

1^st number: 4/8, 2^nd number: 2 18/27

4/8 - 72/27 is -13/6.

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,
4/8 = 4 × 27/8 × 27 = 108/216
Likewise, for the 2nd fraction, since 27 × 8 = 216,
72/27 = 72 × 8/27 × 8 = 576/216
Subtract the two like fractions:
108/216 - 576/216 = 108 - 576/216 = -468/216
After reducing the fraction, the answer is -13/6

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