Answers

Subtract 90/6 from 42/54

1^st number: 42/54, 2^nd number: 15 0/6

42/54 - 90/6 is -128/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 54 and 6 is 54
   
   Next, find the equivalent fraction of both fractional numbers with denominator 54
2. For the 1st fraction, since 54 × 1 = 54,
   42/54 = 42 × 1/54 × 1 = 42/54
3. Likewise, for the 2nd fraction, since 6 × 9 = 54,
   90/6 = 90 × 9/6 × 9 = 810/54
4. Subtract the two like fractions:
   42/54 - 810/54 = 42 - 810/54 = -768/54
5. After reducing the fraction, the answer is -128/9

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