Answers

Subtract 84/18 from 28/15

1^st number: 1 13/15, 2^nd number: 4 12/18

28/15 - 84/18 is -14/5.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 15 and 18 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 15 × 6 = 90,
   28/15 = 28 × 6/15 × 6 = 168/90
3. Likewise, for the 2nd fraction, since 18 × 5 = 90,
   84/18 = 84 × 5/18 × 5 = 420/90
4. Subtract the two like fractions:
   168/90 - 420/90 = 168 - 420/90 = -252/90
5. After reducing the fraction, the answer is -14/5

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