[1/(3/5)-1/3]÷(4/5)=[5/3-1/3]×5/4=4/3×5/4=5/3
希望帮到你,请采纳,谢谢😜
答:
5/3-(1/3)÷(4/5)=5/3-5/12=15/12=5/4
5/3-1/3÷4/5=5/4