Answers

Add 45/63 and 90/15

1^st number: 45/63, 2^nd number: 6 0/15

45/63 + 90/15 is 47/7.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 15 is 315
   
   Next, find the equivalent fraction of both fractional numbers with denominator 315
2. For the 1st fraction, since 63 × 5 = 315,
   45/63 = 45 × 5/63 × 5 = 225/315
3. Likewise, for the 2nd fraction, since 15 × 21 = 315,
   90/15 = 90 × 21/15 × 21 = 1890/315
4. Add the two like fractions:
   225/315 + 1890/315 = 225 + 1890/315 = 2115/315
5. 2115/315 simplified gives 47/7
6. So, 45/63 + 90/15 = 47/7
   In mixed form: 65/7

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