Answers

Subtract 21/84 from 7/75

7/75 - 21/84 is -47/300.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 84 is 2100
   
   Next, find the equivalent fraction of both fractional numbers with denominator 2100
2. For the 1st fraction, since 75 × 28 = 2100,
   7/75 = 7 × 28/75 × 28 = 196/2100
3. Likewise, for the 2nd fraction, since 84 × 25 = 2100,
   21/84 = 21 × 25/84 × 25 = 525/2100
4. Subtract the two like fractions:
   196/2100 - 525/2100 = 196 - 525/2100 = -329/2100
5. After reducing the fraction, the answer is -47/300

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