Answers

Subtract 63/84 from 90/18

1^st number: 5 0/18, 2^nd number: 63/84

90/18 - 63/84 is 17/4.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 18 and 84 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 18 × 14 = 252,
   90/18 = 90 × 14/18 × 14 = 1260/252
3. Likewise, for the 2nd fraction, since 84 × 3 = 252,
   63/84 = 63 × 3/84 × 3 = 189/252
4. Subtract the two like fractions:
   1260/252 - 189/252 = 1260 - 189/252 = 1071/252
5. After reducing the fraction, the answer is 17/4
6. In mixed form: 41/4

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