Answer:
x-y= [tex]\frac{2}{21}[/tex]
Step-by-step explanation:
To find x, you divide 3 by 7.
i.e. [tex]\frac{3}{x} = 7[/tex]
7x = 3
Divide both sides of the equation by 7
i.e. [tex]\frac{7x}{7} = \frac{3}{7}[/tex]
x = [tex]\frac{3}{7}[/tex]
To find y, you also divide 4 by 12.
i.e. [tex]\frac{4}{y} = 12[/tex]
12y = 4
Divide both sides by 12.
i.e. [tex]\frac{12y}{12} = \frac{4}{12}[/tex]
y = [tex]\frac{1}{3}[/tex]
Therefore, x-y would be:
= [tex]\frac{3}{7} - \frac{1}{3}[/tex]
Find the Lowest Common Multiple of 7 and 3 which is 21.
= [tex]\frac{9-7}{21}[/tex]
= [tex]\frac{2}{21}[/tex]
Hope this helps!!!
