Answers

Subtract 40/9 from 28/12

1^st number: 2 4/12, 2^nd number: 4 4/9

28/12 - 40/9 is -19/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 9 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 12 × 3 = 36,
   28/12 = 28 × 3/12 × 3 = 84/36
3. Likewise, for the 2nd fraction, since 9 × 4 = 36,
   40/9 = 40 × 4/9 × 4 = 160/36
4. Subtract the two like fractions:
   84/36 - 160/36 = 84 - 160/36 = -76/36
5. After reducing the fraction, the answer is -19/9

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