Answers

Subtract 1/27 from 10/21

10/21 - 1/27 is 83/189.

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,
   10/21 = 10 × 9/21 × 9 = 90/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   1/27 = 1 × 7/27 × 7 = 7/189
4. Subtract the two like fractions:
   90/189 - 7/189 = 90 - 7/189 = 83/189

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