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2 lần rưỡi
rưỡi = 2/3
2 lần rưỡi = 2/3 x 2
= 4/6
Theo mình là như vậy
Gấp 2 lần rưỡi còn gọi là gấp rưỡi
Là số đó có 2 lần
Thêm 1 lần rưỡi nữa nghĩa là 2:1=1
Mà thêm 1 lần nữa nghĩa là 2+1=3
Vậy gấp rưỡi nghĩa là gấp \(\frac{2}{3}\)
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125% mk chắc
100000000000000000000000000000000000000000000000000000000%
duyệt mk nha
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3 lan ,200%
tớ biết kết quả nhưng không biết cách tính ...
THÔNG CẢM NHA !
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\(S_1=a\times a\)
\(S_2=a\times1,5\times a\times1,5\)
\(\Rightarrow S_1\div S_2=1,5\times1,5\)
\(=2,25\)
2,25 dung 100000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000%
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Trả lời
gấp dưỡi là
gấp 1,5 lần
1,5 lan