Answers

Subtract 21/4 from 18/24

1^st number: 18/24, 2^nd number: 5 1/4

18/24 - 21/4 is -9/2.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 24 and 4 is 24
   
   Next, find the equivalent fraction of both fractional numbers with denominator 24
2. For the 1st fraction, since 24 × 1 = 24,
   18/24 = 18 × 1/24 × 1 = 18/24
3. Likewise, for the 2nd fraction, since 4 × 6 = 24,
   21/4 = 21 × 6/4 × 6 = 126/24
4. Subtract the two like fractions:
   18/24 - 126/24 = 18 - 126/24 = -108/24
5. After reducing the fraction, the answer is -9/2

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