Subtract 27/90 from 4/14, Solve 4/14

Subtract 27/90 from 4/14

4/14 - 27/90 is -1/70.

Find the least common denominator or LCM of the two denominators:
LCM of 14 and 90 is 630

Next, find the equivalent fraction of both fractional numbers with denominator 630
For the 1st fraction, since 14 × 45 = 630,
4/14 = 4 × 45/14 × 45 = 180/630
Likewise, for the 2nd fraction, since 90 × 7 = 630,
27/90 = 27 × 7/90 × 7 = 189/630
Subtract the two like fractions:
180/630 - 189/630 = 180 - 189/630 = -9/630
After reducing the fraction, the answer is -1/70

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