Question

Answer 1

a,7/16 + x = 9/4 

           x = 9/4 - 7/16

           x =   29/16

 

b, 1/5 : x = 7/9

            x = 1/5 : 7/9

            x =  9/25

Answer 2

\(a.x=\dfrac{9}{4}-\dfrac{7}{16}=\dfrac{36}{16}-\dfrac{7}{16}=\dfrac{29}{16}\)
b.\(x=\dfrac{1}{5}:\dfrac{7}{9}=\dfrac{9}{35}\)
c.\(x=\dfrac{2}{5}:\dfrac{4}{9}=\dfrac{9}{10}\)
d.\(x=\dfrac{15}{2}-\dfrac{7}{3}=\dfrac{31}{6}\)

Answer 3

a)\(x=\dfrac{9}{4}-\dfrac{7}{16}\)

\(x=\dfrac{36}{16}-\dfrac{7}{16}\)

\(x=\dfrac{29}{16}\)

b)\(x=\dfrac{7}{9}\times\dfrac{1}{5}\)

\(x=\dfrac{7}{45}\)

c)\(x=\dfrac{4}{9}\times\dfrac{2}{5}\)

\(x=\dfrac{8}{45}\)

d)\(x=\dfrac{15}{2}-\dfrac{7}{3}\)

\(x=\dfrac{45}{6}-\dfrac{14}{6}\)

\(x=\dfrac{31}{6}\)

Answer 4

c, 2/5 : x = 4/9

           x = 2/5 : 4/9 

           x  =   18/20= 9/10

d, 15/2 - x = 7/3

              x = 15/2 - 7/3 

              x =    31/6

Answer 5

a \(\dfrac{7}{16}+x=\dfrac{9}{4}\)

\(x=\dfrac{9}{4}-\dfrac{7}{16}\)

\(x=\dfrac{29}{16}\)

b \(\dfrac{1}{5}:x=\dfrac{7}{9}\)

\(x=\dfrac{7}{9}\times\dfrac{1}{5}\)

\(x=\dfrac{7}{45}\)

c \(\dfrac{2}{5}:x=\dfrac{4}{9}\)

\(x=\dfrac{4}{9}\times\dfrac{2}{5}\)

\(x=\dfrac{8}{45}\)

d \(\dfrac{15}{2}-x=\dfrac{7}{3}\)

\(x=\dfrac{15}{2}-\dfrac{7}{3}\)

\(x=\dfrac{31}{6}\)

Answer 6

 x =  9/25