hasil 1,2 + 7,5 % - 1 1 / 2 tolong jawab bsk dikumpulin

1, 2 + 7, 5 persen + 11/2
= 1, 2 + 75/1000 +11/2
= 1,2 + 0, 075 + 5,5
= 1, 275 + 5, 5
= 6, 775

1,2+7,5% -11/2=
12/10 x 1/10=12/100=12%
11/2 x 1/50=11/100=11%
12% +7,5%+11%=15,5%