Câu hỏi của Hoang Kim Thuong

Question

a/b:1/2+2/7=5gup mik nha mn

弃佛入魔 · Accepted Answer

$\dfrac{a}{b}:\dfrac{1}{2}+\dfrac{2}{7}=5$$\Leftrightarrow$$\dfrac{a}{b}:\dfrac{1}{2}=5-\dfrac{2}{7}$$\Leftrightarrow$$\dfrac{a}{b}:\dfrac{1}{2}=\dfrac{33}{7}$$\Leftrightarrow$$\dfrac{a}{b}=\dfrac{33}{7}.\dfrac{1}{2}$$\Leftrightarrow$$\dfrac{a}{b}=\dfrac{33}{14}$$Vậy a=33 , b=14$Câu trả lời: $\dfrac{a}{b}:\dfrac{1}{2}+\dfrac{2}{7}=5$$\Leftrightarrow$$\dfrac{a}{b}:\dfrac{1}{2}=5-\dfrac{2}{7}$$\Leftrightarrow$$\dfrac{a}{b}:\dfrac{1}{2}=\dfrac{33}{7}$$\Leftrightarrow$$\dfrac{a}{b}=\dfrac{33}{7}.\dfrac{1}{2}$$\Leftrightarrow$$\dfrac{a}{b}=\dfrac{33}{14}$$Vậy a=33 , b=14$

Vân Nguyễn Thị · Answer

Giải:$\dfrac{a}{b}:\dfrac{1}{2}+\dfrac{2}{7}=5$ $\Rightarrow$ $\dfrac{a}{b}:\dfrac{1}{2}=5-\dfrac{2}{7}$$\Rightarrow$ $\dfrac{a}{b}:\dfrac{1}{2}=\dfrac{33}{7}$$\Rightarrow$ $\dfrac{a}{b}=\dfrac{33}{7}.\dfrac{1}{2}$$\Rightarrow$ $\dfrac{a}{b}=\dfrac{33}{14}$Vậy a = 33, b = 14Câu trả lời: Giải:$\dfrac{a}{b}:\dfrac{1}{2}+\dfrac{2}{7}=5$ $\Rightarrow$ $\dfrac{a}{b}:\dfrac{1}{2}=5-\dfrac{2}{7}$$\Rightarrow$ $\dfrac{a}{b}:\dfrac{1}{2}=\dfrac{33}{7}$$\Rightarrow$ $\dfrac{a}{b}=\dfrac{33}{7}.\dfrac{1}{2}$$\Rightarrow$ $\dfrac{a}{b}=\dfrac{33}{14}$Vậy a = 33, b = 14

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)