Answers

Subtract 81/18 from 49/63

1^st number: 49/63, 2^nd number: 4 9/18

49/63 - 81/18 is -67/18.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 18 is 126
   
   Next, find the equivalent fraction of both fractional numbers with denominator 126
2. For the 1st fraction, since 63 × 2 = 126,
   49/63 = 49 × 2/63 × 2 = 98/126
3. Likewise, for the 2nd fraction, since 18 × 7 = 126,
   81/18 = 81 × 7/18 × 7 = 567/126
4. Subtract the two like fractions:
   98/126 - 567/126 = 98 - 567/126 = -469/126
5. After reducing the fraction, the answer is -67/18

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