Answers

Subtract 3/90 from 1/75

1/75 - 3/90 is -1/50.

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,
   1/75 = 1 × 6/75 × 6 = 6/450
3. Likewise, for the 2nd fraction, since 90 × 5 = 450,
   3/90 = 3 × 5/90 × 5 = 15/450
4. Subtract the two like fractions:
   6/450 - 15/450 = 6 - 15/450 = -9/450
5. After reducing the fraction, the answer is -1/50

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