Answers

Subtract 10/54 from 84/42

1^st number: 2 0/42, 2^nd number: 10/54

84/42 - 10/54 is 49/27.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 42 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 42 × 9 = 378,
   84/42 = 84 × 9/42 × 9 = 756/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   10/54 = 10 × 7/54 × 7 = 70/378
4. Subtract the two like fractions:
   756/378 - 70/378 = 756 - 70/378 = 686/378
5. After reducing the fraction, the answer is 49/27
6. In mixed form: 122/27

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