Answers

Add 72/7 and 40/72

1^st number: 10 2/7, 2^nd number: 40/72

72/7 + 40/72 is 683/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 7 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 7 × 72 = 504,
   72/7 = 72 × 72/7 × 72 = 5184/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   40/72 = 40 × 7/72 × 7 = 280/504
4. Add the two like fractions:
   5184/504 + 280/504 = 5184 + 280/504 = 5464/504
5. 5464/504 simplified gives 683/63
6. So, 72/7 + 40/72 = 683/63
   In mixed form: 1053/63

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