Answers

Subtract 16/21 from 8/27

8/27 - 16/21 is -88/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 27 and 21 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 27 × 7 = 189,
   8/27 = 8 × 7/27 × 7 = 56/189
3. Likewise, for the 2nd fraction, since 21 × 9 = 189,
   16/21 = 16 × 9/21 × 9 = 144/189
4. Subtract the two like fractions:
   56/189 - 144/189 = 56 - 144/189 = -88/189

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