Answers

Add 90/14 and 63/72

1^st number: 6 6/14, 2^nd number: 63/72

90/14 + 63/72 is 409/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 14 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 14 × 36 = 504,
   90/14 = 90 × 36/14 × 36 = 3240/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   63/72 = 63 × 7/72 × 7 = 441/504
4. Add the two like fractions:
   3240/504 + 441/504 = 3240 + 441/504 = 3681/504
5. 3681/504 simplified gives 409/56
6. So, 90/14 + 63/72 = 409/56
   In mixed form: 717/56

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