Answers

Subtract 90/84 from 4/75

1^st number: 4/75, 2^nd number: 1 6/84

4/75 - 90/84 is -1069/1050.

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,
   4/75 = 4 × 28/75 × 28 = 112/2100
3. Likewise, for the 2nd fraction, since 84 × 25 = 2100,
   90/84 = 90 × 25/84 × 25 = 2250/2100
4. Subtract the two like fractions:
   112/2100 - 2250/2100 = 112 - 2250/2100 = -2138/2100
5. After reducing the fraction, the answer is -1069/1050

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