Subtract 9/4 from 25/75, Solve 25/75

Subtract 9/4 from 25/75

1^st number: 25/75, 2^nd number: 2 1/4

25/75 - 9/4 is -23/12.

Find the least common denominator or LCM of the two denominators:
LCM of 75 and 4 is 300

Next, find the equivalent fraction of both fractional numbers with denominator 300
For the 1st fraction, since 75 × 4 = 300,
25/75 = 25 × 4/75 × 4 = 100/300
Likewise, for the 2nd fraction, since 4 × 75 = 300,
9/4 = 9 × 75/4 × 75 = 675/300
Subtract the two like fractions:
100/300 - 675/300 = 100 - 675/300 = -575/300
After reducing the fraction, the answer is -23/12

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