Answers

Subtract 21/63 from 98/18

1^st number: 5 8/18, 2^nd number: 21/63

98/18 - 21/63 is 46/9.

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,
   98/18 = 98 × 7/18 × 7 = 686/126
3. Likewise, for the 2nd fraction, since 63 × 2 = 126,
   21/63 = 21 × 2/63 × 2 = 42/126
4. Subtract the two like fractions:
   686/126 - 42/126 = 686 - 42/126 = 644/126
5. After reducing the fraction, the answer is 46/9
6. In mixed form: 51/9

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