Subtract 90/32 from 2/18, Solve 2/18

Subtract 90/32 from 2/18

1^st number: 2/18, 2^nd number: 2 26/32

2/18 - 90/32 is -389/144.

Find the least common denominator or LCM of the two denominators:
LCM of 18 and 32 is 288

Next, find the equivalent fraction of both fractional numbers with denominator 288
For the 1st fraction, since 18 × 16 = 288,
2/18 = 2 × 16/18 × 16 = 32/288
Likewise, for the 2nd fraction, since 32 × 9 = 288,
90/32 = 90 × 9/32 × 9 = 810/288
Subtract the two like fractions:
32/288 - 810/288 = 32 - 810/288 = -778/288
After reducing the fraction, the answer is -389/144

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