Answers

Subtract 98/45 from 63/21

1^st number: 3 0/21, 2^nd number: 2 8/45

63/21 - 98/45 is 37/45.

Steps for subtracting fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 21 and 45 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 21 × 15 = 315,
   63/21 = 63 × 15/21 × 15 = 945/315
3. Likewise, for the 2nd fraction, since 45 × 7 = 315,
   98/45 = 98 × 7/45 × 7 = 686/315
4. Subtract the two like fractions:
   945/315 - 686/315 = 945 - 686/315 = 259/315
5. After reducing the fraction, the answer is 37/45

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