Answers

Subtract 12/25 from 25/90

25/90 - 12/25 is -91/450.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 90 and 25 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 90 × 5 = 450,
   25/90 = 25 × 5/90 × 5 = 125/450
3. Likewise, for the 2nd fraction, since 25 × 18 = 450,
   12/25 = 12 × 18/25 × 18 = 216/450
4. Subtract the two like fractions:
   125/450 - 216/450 = 125 - 216/450 = -91/450

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