35/6+x=3/4x51/2

35/6+x=153/8

         x=153/8-35/6

          x=319/24

\(\frac{35}{6}+X=\frac{3}{4}\times5\frac{1}{2}\)

 \(\frac{35}{6}_{ }+X=\frac{33}{8}\)

              \(X=\frac{33}{8}-\frac{35}{6}\)

             \(X=\frac{-41}{24}\)

một trăm linh hai phần ba lăm

a 15/7"3/4

\(\frac{3}{4}x\frac{5}{6}-\frac{1}{6}=\frac{11}{24}\)

\(4\frac{8}{5}-\frac{2}{3}=\frac{28}{5}-\frac{2}{3}=\frac{74}{15}\)

= chín phần hai 

1/3 + 5/2 + 10/6 = 4/12 + 30/12 + 20/12 = 54/12 = 27/6

1/3 + 5/2 + 10/6 =

Quy đồng :

1/3 = 1/3 x 2 = 2/6

5/2 = 5/2 x 3 = 15/6

10/6 giữ nguyên

=> 2/6 + 15/6 + 10/6 = 27/6

Vậy : 1/3 + 5/2 + 10/6 = 27/6

\(\dfrac{1}{7}\cdot\dfrac{5}{9}+\dfrac{5}{9}\cdot\dfrac{2}{7}+\dfrac{5}{9}\cdot\dfrac{1}{7}+\dfrac{5}{9}\cdot\dfrac{3}{7}\)

=5/9(1/7+2/7+1/7+3/7)

=5/9*1

=5/9

\(\frac{1}{3}\cdot y+2=\frac{1}{5}\cdot y+\frac{7}{2}\)

\(=>\frac{1}{3}\cdot y-\frac{1}{5}\cdot y=\frac{7}{2}-2\)

\(=>y\cdot\left(\frac{1}{3}-\frac{1}{5}\right)=\frac{3}{2}\)

\(=>y\cdot\frac{2}{15}=\frac{3}{2}\)

\(=>y=\frac{3}{2}:\frac{2}{15}=\frac{45}{4}\)

Hai phần chín cộng ích bằng một

theo de bai ta co 1/3.y+2=1/5.y+7/2

=>y/3+2=y/5+7/2

=>y+6/3=2y+35/10

=>6y+105=10y+60

=>16y=165

=>y=165/16