Subtract 45/32 from 5/90, Solve 5/90

Subtract 45/32 from 5/90

1^st number: 5/90, 2^nd number: 1 13/32

5/90 - 45/32 is -389/288.

Find the least common denominator or LCM of the two denominators:
LCM of 90 and 32 is 1440

Next, find the equivalent fraction of both fractional numbers with denominator 1440
For the 1st fraction, since 90 × 16 = 1440,
5/90 = 5 × 16/90 × 16 = 80/1440
Likewise, for the 2nd fraction, since 32 × 45 = 1440,
45/32 = 45 × 45/32 × 45 = 2025/1440
Subtract the two like fractions:
80/1440 - 2025/1440 = 80 - 2025/1440 = -1945/1440
After reducing the fraction, the answer is -389/288

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