Answers

Subtract 40/21 from 32/54

1^st number: 32/54, 2^nd number: 1 19/21

32/54 - 40/21 is -248/189.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 21 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 54 × 7 = 378,
   32/54 = 32 × 7/54 × 7 = 224/378
3. Likewise, for the 2nd fraction, since 21 × 18 = 378,
   40/21 = 40 × 18/21 × 18 = 720/378
4. Subtract the two like fractions:
   224/378 - 720/378 = 224 - 720/378 = -496/378
5. After reducing the fraction, the answer is -248/189

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