Subtract 10/16 from 4/90, Solve 4/90

Subtract 10/16 from 4/90

4/90 - 10/16 is -209/360.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 16 is 720

Next, find the equivalent fraction of both fractional numbers with denominator 720
For the 1st fraction, since 90 × 8 = 720,
4/90 = 4 × 8/90 × 8 = 32/720
Likewise, for the 2nd fraction, since 16 × 45 = 720,
10/16 = 10 × 45/16 × 45 = 450/720
Subtract the two like fractions:
32/720 - 450/720 = 32 - 450/720 = -418/720
After reducing the fraction, the answer is -209/360

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