Answer :

ayah1
4 7/12 + 2 1/12 = 6 8/12
6 8/12, is 80/12 (12 times 6 plus 8 over 12)
80/12 equals about 6.67
[tex]4 \frac{7}{12} = \frac{12*4+7}{12} = \frac{55}{12} \\ \\ 2 \frac{1}{12} = \frac{2*12+1}{12} = \frac{25}{12} \\ \\ \frac{55}{12} + \frac{25}{12} = \frac{80}{12} \\ \\ \frac{80 :4}{4:4} = \frac{20}{3} [/tex]