Câu hỏi của Quỳnh anh Vũ

Question

2611 · Accepted Answer

`a)3/4-1/2=3/4-2/4=1/4``b)7/10+5/14=49/70+25/70=74/70=37/35`Câu trả lời: `a)3/4-1/2=3/4-2/4=1/4``b)7/10+5/14=49/70+25/70=74/70=37/35`

Linh Tạ · Answer

$a.\text{​​}\text{​​}\dfrac{3}{4}-\dfrac{1}{2}\ =\dfrac{3}{4}-\dfrac{2}{4}\ =\dfrac{3-2}{4}\
=\dfrac{1}{4}$$b.\dfrac{7}{10}+\dfrac{5}{14}\
=\dfrac{98}{140}+\dfrac{50}{140}\
=\dfrac{98+50}{140}\
=\dfrac{148}{140}\
=\dfrac{37}{35}$Câu trả lời: $a.\text{​​}\text{​​}\dfrac{3}{4}-\dfrac{1}{2}\ =\dfrac{3}{4}-\dfrac{2}{4}\ =\dfrac{3-2}{4}\
=\dfrac{1}{4}$$b.\dfrac{7}{10}+\dfrac{5}{14}\
=\dfrac{98}{140}+\dfrac{50}{140}\
=\dfrac{98+50}{140}\
=\dfrac{148}{140}\
=\dfrac{37}{35}$

Kirito Asuna · Answer

a. 3/4-1/2=3/4-2/4=1/4b. 7/10+5/14=49/70+25/70=74/70=37/35Câu trả lời: a. 3/4-1/2=3/4-2/4=1/4b. 7/10+5/14=49/70+25/70=74/70=37/35

Khoá học trên OLM (olm.vn)

Khoá học trên OLM (olm.vn)