Subtract 6/27 from 12/40, Solve 12/40

Subtract 6/27 from 12/40

12/40 - 6/27 is 7/90.

Find the least common denominator or LCM of the two denominators:
LCM of 40 and 27 is 1080

Next, find the equivalent fraction of both fractional numbers with denominator 1080
For the 1st fraction, since 40 × 27 = 1080,
12/40 = 12 × 27/40 × 27 = 324/1080
Likewise, for the 2nd fraction, since 27 × 40 = 1080,
6/27 = 6 × 40/27 × 40 = 240/1080
Subtract the two like fractions:
324/1080 - 240/1080 = 324 - 240/1080 = 84/1080
After reducing the fraction, the answer is 7/90

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