Question

1) giá trị thích hợp của ý để : ( y - \(\frac{2}{5}\)) : \(\frac{4}{15}\)= \(\frac{5}{8}\)laf : y = ..............................................

2) điênf daaus >,< hoặc = thích hợp vào chỗ chấm :

25 ' 32" : 4 + 4' 22" .......................................... 9' 55"

ai nhanh mk tick cho !!!!!!!!!!!

Answer 1

Câu 1: bằng \(\frac{17}{30}\)

câu 2 : >

Answer 2

1, (y-2/5):4/15=5/8

(y-2/5)=5/8.4/15

y-2/5=1/6

=>y=1/6+2/5

=>y=17/30

vậy y=17/30

Answer 3

2,>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>

hihi