Answers

Subtract 16/42 from 15/75

15/75 - 16/42 is -19/105.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 42 is 1050
   
   Next, find the equivalent fraction of both fractional numbers with denominator 1050
2. For the 1st fraction, since 75 × 14 = 1050,
   15/75 = 15 × 14/75 × 14 = 210/1050
3. Likewise, for the 2nd fraction, since 42 × 25 = 1050,
   16/42 = 16 × 25/42 × 25 = 400/1050
4. Subtract the two like fractions:
   210/1050 - 400/1050 = 210 - 400/1050 = -190/1050
5. After reducing the fraction, the answer is -19/105

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