Answers

Subtract 50/75 from 42/84

42/84 - 50/75 is -1/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 75 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 84 × 25 = 2100,
   42/84 = 42 × 25/84 × 25 = 1050/2100
3. Likewise, for the 2nd fraction, since 75 × 28 = 2100,
   50/75 = 50 × 28/75 × 28 = 1400/2100
4. Subtract the two like fractions:
   1050/2100 - 1400/2100 = 1050 - 1400/2100 = -350/2100
5. After reducing the fraction, the answer is -1/6

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