Question

Rút gọn phấn số sau:

\(\dfrac{15.50}{25.3.20}\)

Answer 1

\(\dfrac{15\cdot50}{25\cdot3\cdot20}\\ =\dfrac{15\cdot50}{5^2\cdot3\cdot2\cdot10}\\ =\dfrac{15\cdot50}{\left(5\cdot10\right)\cdot\left(5\cdot3\right)\cdot2}=\dfrac{15\cdot50}{50\cdot15\cdot2}=\dfrac{1}{2}\)

Answer 2

\(\dfrac{15.50}{25.3.20}\)= \(\dfrac{5.2}{1.1.20}\)= \(\dfrac{1.2}{1.4}\)=\(\dfrac{1.1}{1.2}=\dfrac{1}{2}\)

Answer 3

 Lời giải đây

Xin lỗi vì mình chỉ viết tay được thôi

Chúc bạn học tốt!! 

Answer 4

 

\(\dfrac{15.50}{25.3.20}=\dfrac{3.5.5.10}{5.5.3.4.5}=\dfrac{10}{4.5}=\dfrac{10}{20}\)

➩\(\dfrac{15.50}{25.3.20}\) Rút gọn thành \(\dfrac{10}{20}\)

 

Answer 5

15.5025.3.2015.5025.3.20 Rút gọn thành