Question

помогите плиз срочно!!!!!!!!

Answer 1

1)4/3:(4/3+4)=4/3:(16/3)=4/3*3/16=1/4
2)4*4/3:(16/9-16)=16/3:(-128/9)=-(16*9)/(3*128)=-3/8
3) 1/4-3/8=2/8-3/8=-1/8