Answers

Subtract 16/54 from 21/36

21/36 - 16/54 is 31/108.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 36 and 54 is 108
   
   Next, find the equivalent fraction of both fractional numbers with denominator 108
2. For the 1st fraction, since 36 × 3 = 108,
   21/36 = 21 × 3/36 × 3 = 63/108
3. Likewise, for the 2nd fraction, since 54 × 2 = 108,
   16/54 = 16 × 2/54 × 2 = 32/108
4. Subtract the two like fractions:
   63/108 - 32/108 = 63 - 32/108 = 31/108

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