Subtract 90/75 from 9/16, Solve 9/16

Subtract 90/75 from 9/16

1^st number: 9/16, 2^nd number: 1 15/75

9/16 - 90/75 is -51/80.

Find the least common denominator or LCM of the two denominators:
LCM of 16 and 75 is 1200

Next, find the equivalent fraction of both fractional numbers with denominator 1200
For the 1st fraction, since 16 × 75 = 1200,
9/16 = 9 × 75/16 × 75 = 675/1200
Likewise, for the 2nd fraction, since 75 × 16 = 1200,
90/75 = 90 × 16/75 × 16 = 1440/1200
Subtract the two like fractions:
675/1200 - 1440/1200 = 675 - 1440/1200 = -765/1200
After reducing the fraction, the answer is -51/80

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