Answers

Subtract 56/27 from 36/21

1^st number: 1 15/21, 2^nd number: 2 2/27

36/21 - 56/27 is -68/189.

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,
   36/21 = 36 × 9/21 × 9 = 324/189
3. Likewise, for the 2nd fraction, since 27 × 7 = 189,
   56/27 = 56 × 7/27 × 7 = 392/189
4. Subtract the two like fractions:
   324/189 - 392/189 = 324 - 392/189 = -68/189

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