Answers

Subtract 27/7 from 12/9

1^st number: 1 3/9, 2^nd number: 3 6/7

12/9 - 27/7 is -53/21.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 9 and 7 is 63
   
   Next, find the equivalent fraction of both fractional numbers with denominator 63
2. For the 1st fraction, since 9 × 7 = 63,
   12/9 = 12 × 7/9 × 7 = 84/63
3. Likewise, for the 2nd fraction, since 7 × 9 = 63,
   27/7 = 27 × 9/7 × 9 = 243/63
4. Subtract the two like fractions:
   84/63 - 243/63 = 84 - 243/63 = -159/63
5. After reducing the fraction, the answer is -53/21

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