Answers

Add 84/72 and 42/9

1^st number: 1 12/72, 2^nd number: 4 6/9

84/72 + 42/9 is 35/6.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 72 and 9 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 72 × 1 = 72,
   84/72 = 84 × 1/72 × 1 = 84/72
3. Likewise, for the 2nd fraction, since 9 × 8 = 72,
   42/9 = 42 × 8/9 × 8 = 336/72
4. Add the two like fractions:
   84/72 + 336/72 = 84 + 336/72 = 420/72
5. 420/72 simplified gives 35/6
6. So, 84/72 + 42/9 = 35/6
   In mixed form: 55/6

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