Subtract 80/18 from 9/25, Solve 9/25

Subtract 80/18 from 9/25

1^st number: 9/25, 2^nd number: 4 8/18

9/25 - 80/18 is -919/225.

Find the least common denominator or LCM of the two denominators:
LCM of 25 and 18 is 450

Next, find the equivalent fraction of both fractional numbers with denominator 450
For the 1st fraction, since 25 × 18 = 450,
9/25 = 9 × 18/25 × 18 = 162/450
Likewise, for the 2nd fraction, since 18 × 25 = 450,
80/18 = 80 × 25/18 × 25 = 2000/450
Subtract the two like fractions:
162/450 - 2000/450 = 162 - 2000/450 = -1838/450
After reducing the fraction, the answer is -919/225

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