Answers

Subtract 84/63 from 40/18

1^st number: 2 4/18, 2^nd number: 1 21/63

40/18 - 84/63 is 8/9.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 63 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 18 × 7 = 126,
   40/18 = 40 × 7/18 × 7 = 280/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   84/63 = 84 × 2/63 × 2 = 168/126
4. Subtract the two like fractions:
   280/126 - 168/126 = 280 - 168/126 = 112/126
5. After reducing the fraction, the answer is 8/9

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