Answers

Subtract 25/15 from 27/18

1^st number: 1 9/18, 2^nd number: 1 10/15

27/18 - 25/15 is -1/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 15 is 90
   
   Next, find the equivalent fraction of both fractional numbers with denominator 90
2. For the 1st fraction, since 18 × 5 = 90,
   27/18 = 27 × 5/18 × 5 = 135/90
3. Likewise, for the 2nd fraction, since 15 × 6 = 90,
   25/15 = 25 × 6/15 × 6 = 150/90
4. Subtract the two like fractions:
   135/90 - 150/90 = 135 - 150/90 = -15/90
5. After reducing the fraction, the answer is -1/6

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