Answers

Subtract 48/36 from 21/18

1^st number: 1 3/18, 2^nd number: 1 12/36

21/18 - 48/36 is -1/6.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 36 is 36
   
   Next, find the equivalent fraction of both fractional numbers with denominator 36
2. For the 1st fraction, since 18 × 2 = 36,
   21/18 = 21 × 2/18 × 2 = 42/36
3. Likewise, for the 2nd fraction, since 36 × 1 = 36,
   48/36 = 48 × 1/36 × 1 = 48/36
4. Subtract the two like fractions:
   42/36 - 48/36 = 42 - 48/36 = -6/36
5. After reducing the fraction, the answer is -1/6

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