Answers

Add 25/7 and 84/72

1^st number: 3 4/7, 2^nd number: 1 12/72

25/7 + 84/72 is 199/42.

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,
   25/7 = 25 × 72/7 × 72 = 1800/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   84/72 = 84 × 7/72 × 7 = 588/504
4. Add the two like fractions:
   1800/504 + 588/504 = 1800 + 588/504 = 2388/504
5. 2388/504 simplified gives 199/42
6. So, 25/7 + 84/72 = 199/42
   In mixed form: 431/42

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