Answers

Add 72/63 and 15/72

1^st number: 1 9/63, 2^nd number: 15/72

72/63 + 15/72 is 227/168.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 63 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 63 × 8 = 504,
   72/63 = 72 × 8/63 × 8 = 576/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   15/72 = 15 × 7/72 × 7 = 105/504
4. Add the two like fractions:
   576/504 + 105/504 = 576 + 105/504 = 681/504
5. 681/504 simplified gives 227/168
6. So, 72/63 + 15/72 = 227/168
   In mixed form: 159/168

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