Subtract 10/27 from 4/30, Solve 4/30

Subtract 10/27 from 4/30

4/30 - 10/27 is -32/135.

Find the least common denominator or LCM of the two denominators:
LCM of 30 and 27 is 270

Next, find the equivalent fraction of both fractional numbers with denominator 270
For the 1st fraction, since 30 × 9 = 270,
4/30 = 4 × 9/30 × 9 = 36/270
Likewise, for the 2nd fraction, since 27 × 10 = 270,
10/27 = 10 × 10/27 × 10 = 100/270
Subtract the two like fractions:
36/270 - 100/270 = 36 - 100/270 = -64/270
After reducing the fraction, the answer is -32/135

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