Answers

Subtract 84/90 from 45/75

45/75 - 84/90 is -1/3.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 90 is 450
   
   Next, find the equivalent fraction of both fractional numbers with denominator 450
2. For the 1st fraction, since 75 × 6 = 450,
   45/75 = 45 × 6/75 × 6 = 270/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   84/90 = 84 × 5/90 × 5 = 420/450
4. Subtract the two like fractions:
   270/450 - 420/450 = 270 - 420/450 = -150/450
5. After reducing the fraction, the answer is -1/3

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