Subtract 24/5 from 75/27, Solve 2 21/27

Subtract 24/5 from 75/27

1^st number: 2 21/27, 2^nd number: 4 4/5

75/27 - 24/5 is -91/45.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 5 is 135

Next, find the equivalent fraction of both fractional numbers with denominator 135
For the 1st fraction, since 27 × 5 = 135,
75/27 = 75 × 5/27 × 5 = 375/135
Likewise, for the 2nd fraction, since 5 × 27 = 135,
24/5 = 24 × 27/5 × 27 = 648/135
Subtract the two like fractions:
375/135 - 648/135 = 375 - 648/135 = -273/135
After reducing the fraction, the answer is -91/45

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