Answers

Subtract 60/4 from 81/18

1^st number: 4 9/18, 2^nd number: 15 0/4

81/18 - 60/4 is -21/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 4 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 18 × 2 = 36,
   81/18 = 81 × 2/18 × 2 = 162/36
3. Likewise, for the 2nd fraction, since 4 × 9 = 36,
   60/4 = 60 × 9/4 × 9 = 540/36
4. Subtract the two like fractions:
   162/36 - 540/36 = 162 - 540/36 = -378/36
5. After reducing the fraction, the answer is -21/2

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