Question

数学分数题

（9分之4+15分之2）÷15分之2

过程

Answer 1

(4/9+2/15)÷2/15
=4/9*15/2+1
=10/3+1
=1又10/3

Answer 2

(4/9+2/15)÷2/15
=(4/9+2/15)*15/2
=(4/9)*(15/2)+(2/15)*(15/2)
=(4*15)/(9*2)+(2*15)/(15*2)
=60/18+30/30
=10/3+3/3
=13/3