Subtract 5/70 from 1/27, Solve 1/27

Subtract 5/70 from 1/27

1/27 - 5/70 is -13/378.

Find the least common denominator or LCM of the two denominators:
LCM of 27 and 70 is 1890

Next, find the equivalent fraction of both fractional numbers with denominator 1890
For the 1st fraction, since 27 × 70 = 1890,
1/27 = 1 × 70/27 × 70 = 70/1890
Likewise, for the 2nd fraction, since 70 × 27 = 1890,
5/70 = 5 × 27/70 × 27 = 135/1890
Subtract the two like fractions:
70/1890 - 135/1890 = 70 - 135/1890 = -65/1890
After reducing the fraction, the answer is -13/378

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