Question

二十分之三除于0.2乘于三分之三 （九分之四+十五分之二）除于十五分之二

Answer 1

3/20÷0.2×3/3

=3/20÷1/5×1

=3/20×5

=15/20

(4/9+2/15)÷2/15

=4/9÷2/15 + 2/15÷2/15

=4/9×15/2 + 1

=10/3+1

=13/3