Answers

Subtract 6/27 from 8/21

8/21 - 6/27 is 10/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 27 is 189
   
   Next, find the equivalent fraction of both fractional numbers with denominator 189
2. For the 1st fraction, since 21 × 9 = 189,
   8/21 = 8 × 9/21 × 9 = 72/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   6/27 = 6 × 7/27 × 7 = 42/189
4. Subtract the two like fractions:
   72/189 - 42/189 = 72 - 42/189 = 30/189
5. After reducing the fraction, the answer is 10/63

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