Answers

Add 30/84 and 81/72

1^st number: 30/84, 2^nd number: 1 9/72

30/84 + 81/72 is 83/56.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 72 is 504
   
   Next, find the equivalent fraction of both fractional numbers with denominator 504
2. For the 1st fraction, since 84 × 6 = 504,
   30/84 = 30 × 6/84 × 6 = 180/504
3. Likewise, for the 2nd fraction, since 72 × 7 = 504,
   81/72 = 81 × 7/72 × 7 = 567/504
4. Add the two like fractions:
   180/504 + 567/504 = 180 + 567/504 = 747/504
5. 747/504 simplified gives 83/56
6. So, 30/84 + 81/72 = 83/56
   In mixed form: 127/56

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