Subtract 27/15 from 1/80, Solve 1/80

Subtract 27/15 from 1/80

1^st number: 1/80, 2^nd number: 1 12/15

1/80 - 27/15 is -143/80.

Find the least common denominator or LCM of the two denominators:
LCM of 80 and 15 is 240

Next, find the equivalent fraction of both fractional numbers with denominator 240
For the 1st fraction, since 80 × 3 = 240,
1/80 = 1 × 3/80 × 3 = 3/240
Likewise, for the 2nd fraction, since 15 × 16 = 240,
27/15 = 27 × 16/15 × 16 = 432/240
Subtract the two like fractions:
3/240 - 432/240 = 3 - 432/240 = -429/240
After reducing the fraction, the answer is -143/80

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