8分之3*(8分之7+6分之1)÷4分之3=3/8×4/3×(7/8+1/6)=1/2×(7/8+1/6)=1/2×7/8+1/2×1/6=7/16+1/12=21/48+4/48=25/48希望可以帮到你祝学习快乐!O(∩_∩)O~
8分之3*(8分之7+6分之1)÷4分之3= 3/8×(7/8 + 1/6 ) ÷(3/4)= 1/2×(21/24 + 4/24 ) = 1/2×(25/24)= 25/48