Answers

Add 72/84 and 70/9

1^st number: 72/84, 2^nd number: 7 7/9

72/84 + 70/9 is 544/63.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 84 and 9 is 252
   
   Next, find the equivalent fraction of both fractional numbers with denominator 252
2. For the 1st fraction, since 84 × 3 = 252,
   72/84 = 72 × 3/84 × 3 = 216/252
3. Likewise, for the 2nd fraction, since 9 × 28 = 252,
   70/9 = 70 × 28/9 × 28 = 1960/252
4. Add the two like fractions:
   216/252 + 1960/252 = 216 + 1960/252 = 2176/252
5. 2176/252 simplified gives 544/63
6. So, 72/84 + 70/9 = 544/63
   In mixed form: 840/63

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