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2024-04-27 20:57:44
2024-04-27 20:56:38
ta có: 4/5=16/20 ; 3/4=15/20
Vì 16>15 nên 16/20>15/20 hay 4/5>3/4
Nên trong 1 phút, bạn Hòa chạy nhanh hơn bạn Bình
Hơn số phần đoạng đường là: 4/5-3/4=16/20-15/20=1/20(đoạn đường)
2024-04-27 20:49:07
a) Chiều dài mảnh vườn HCN là :
50 : 5/6= 60 ( cm)
Chu vi mảnh vườn HCN là :
(50 + 60) x 2 = 220 ( cm )
b) Diện tích mảnh vườn HCN là :
60 x 50 = 3000 ( cm2 )
Diện tích trồng hoa là :
3000 x 1/6 = 500 ( cm2 )
2024-02-16 19:35:57
hello