1) (4-5(1))(3(4)-1)= (4-5)(12-1)= (-1)(11)= -11
2) 7 + 2 / 2(7) - 2= 7 + 2 / 14 - 2= 7 + 2 / 12= 9 / 12= 3 / 4
1) (4-5(1))(3(4)-1)
= (4-5)(12-1)
= (-1)(11)
= -11
2) 7 + 2 / 2(7) - 2
= 7 + 2 / 14 - 2
= 7 + 2 / 12
= 9 / 12
= 3 / 4