1).83% x3/4= 2).2,6:2 1/7= 3).18%+3 1/9-2 8/9

1) 83% × 3/4 = 83/100 × 3/4
83/100×3/4= 83/100-75/100=8/100= 2/25
2) 2,6 : 2 1/7 = 26/10:15/7 = 26/10×7/15 = 182/150 = 91/75
3) 18% + 3 1/9 - 2 8/9= 18/100+28/9-26/9 =
162/900+280/900-260/900 = 182/900= 91/450
maaf jika salah...