Answers

Subtract 12/54 from 90/63

1^st number: 1 27/63, 2^nd number: 12/54

90/63 - 12/54 is 76/63.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 54 is 378
   
   Next, find the equivalent fraction of both fractional numbers with denominator 378
2. For the 1st fraction, since 63 × 6 = 378,
   90/63 = 90 × 6/63 × 6 = 540/378
3. Likewise, for the 2nd fraction, since 54 × 7 = 378,
   12/54 = 12 × 7/54 × 7 = 84/378
4. Subtract the two like fractions:
   540/378 - 84/378 = 540 - 84/378 = 456/378
5. After reducing the fraction, the answer is 76/63
6. In mixed form: 113/63

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