Subtract 27/16 from 12/30, Solve 12/30

Subtract 27/16 from 12/30

1^st number: 12/30, 2^nd number: 1 11/16

12/30 - 27/16 is -103/80.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 16 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 30 × 8 = 240,
12/30 = 12 × 8/30 × 8 = 96/240
Likewise, for the 2nd fraction, since 16 × 15 = 240,
27/16 = 27 × 15/16 × 15 = 405/240
Subtract the two like fractions:
96/240 - 405/240 = 96 - 405/240 = -309/240
After reducing the fraction, the answer is -103/80

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