Answers

Subtract 25/9 from 21/75

1^st number: 21/75, 2^nd number: 2 7/9

21/75 - 25/9 is -562/225.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 75 and 9 is 225
   
   Next, find the equivalent fraction of both fractional numbers with denominator 225
2. For the 1st fraction, since 75 × 3 = 225,
   21/75 = 21 × 3/75 × 3 = 63/225
3. Likewise, for the 2nd fraction, since 9 × 25 = 225,
   25/9 = 25 × 25/9 × 25 = 625/225
4. Subtract the two like fractions:
   63/225 - 625/225 = 63 - 625/225 = -562/225

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