Subtract 45/25 from 9/64, Solve 9/64

Subtract 45/25 from 9/64

1^st number: 9/64, 2^nd number: 1 20/25

9/64 - 45/25 is -531/320.

Find the least common denominator or LCM of the two denominators:
LCM of 64 and 25 is 1600

Next, find the equivalent fraction of both fractional numbers with denominator 1600
For the 1st fraction, since 64 × 25 = 1600,
9/64 = 9 × 25/64 × 25 = 225/1600
Likewise, for the 2nd fraction, since 25 × 64 = 1600,
45/25 = 45 × 64/25 × 64 = 2880/1600
Subtract the two like fractions:
225/1600 - 2880/1600 = 225 - 2880/1600 = -2655/1600
After reducing the fraction, the answer is -531/320

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