Answers

Add 70/12 and 84/72

1^st number: 5 10/12, 2^nd number: 1 12/72

70/12 + 84/72 is 7/1.

Steps for adding fractions

1. Find the least common denominator or LCM of the two denominators:
   LCM of 12 and 72 is 72
   
   Next, find the equivalent fraction of both fractional numbers with denominator 72
2. For the 1st fraction, since 12 × 6 = 72,
   70/12 = 70 × 6/12 × 6 = 420/72
3. Likewise, for the 2nd fraction, since 72 × 1 = 72,
   84/72 = 84 × 1/72 × 1 = 84/72
4. Add the two like fractions:
   420/72 + 84/72 = 420 + 84/72 = 504/72
5. 504/72 simplified gives 7/1
6. So, 70/12 + 84/72 = 7/1

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