Answers

Subtract 3/54 from 90/42

1^st number: 2 6/42, 2^nd number: 3/54

90/42 - 3/54 is 263/126.

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,
   90/42 = 90 × 9/42 × 9 = 810/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   3/54 = 3 × 7/54 × 7 = 21/378
4. Subtract the two like fractions:
   810/378 - 21/378 = 810 - 21/378 = 789/378
5. After reducing the fraction, the answer is 263/126
6. In mixed form: 211/126

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