Answers

Subtract 90/18 from 63/49

1^st number: 1 14/49, 2^nd number: 5 0/18

63/49 - 90/18 is -26/7.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 49 and 18 is 882
   
   Next, find the equivalent fraction of both fractional numbers with denominator 882
2. For the 1st fraction, since 49 × 18 = 882,
   63/49 = 63 × 18/49 × 18 = 1134/882
3. Likewise, for the 2nd fraction, since 18 × 49 = 882,
   90/18 = 90 × 49/18 × 49 = 4410/882
4. Subtract the two like fractions:
   1134/882 - 4410/882 = 1134 - 4410/882 = -3276/882
5. After reducing the fraction, the answer is -26/7

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