Question

a .1/2 + X x 3 = 5/2                                              b .3/4 + X : 2/5 = 37/16

Answer 1

a. \(\frac{1}{2}+x\times3=\frac{5}{2}\)

\(x\times3=\frac{5}{2}-\frac{1}{2}\)

\(x\times3=2\)

\(x=\frac{2}{3}\)

vậy \(x=\frac{2}{3}\)

Answer 2

a. 1/2+ Xx3 =5/2

Xx3 = 5/2 -1/2

Xx3 = 4/2

X    = 4/2 : 3

X    = 4/6

*Nếu cần rút gọn thì X= 2/3

b.3/4 + X : 2/5 = 37/16

X : 2/5 = 37/16 - 3/4

X : 2/5 = 25/16

X        = 25/16 x2/5

X        = 50/80

*Nếu cần rút gọn thì X= 5/8

Chúc bạn học tốt !

Answer 3

\(\frac{3}{4}+x\div\frac{2}{5}=\frac{37}{16}\)

\(x\div\frac{2}{5}=\frac{37}{16}-\frac{3}{4}\) 

\(x\div\frac{2}{5}=\frac{37}{16}-\frac{12}{16}\) 

\(x\div\frac{2}{5}=\frac{25}{16}\) 

\(x=\frac{25}{16}\times\frac{2}{5}\) 

​​​\(x=\frac{5}{8}\)​

vậy \(x=\frac{5}{8}\)