Diketahui 3 4/9 = a+ 1/b+1/c nilai a+b+c adalah..

3 4/9 = a + 1/b + 1/c
3 4/9 = a + ( c/bc + b/bc )
3 4/9 = a + ( c+b ) / bc
3 + 4/9 = a + ( b+c ) / bc
jadi a = 3
b+c = 4
bc = 9
jadi a + b + c = 3 + 4 = 7