Sagot :
[tex]1-\frac{1}{3}-\frac{3}{7}=\\
\frac{21}{21}-\frac{7}{21}-\frac{9}{21}=\\
\frac{5}{21}[/tex]
Let the complete circle be signified as = 1
Shaded region will be equal to = total - 2 unshared part
= 1 - 1/3 - 3/7
taking LCM
= (21 - 7 - 9)/21
= 5/21
Shaded region will be equal to = total - 2 unshared part
= 1 - 1/3 - 3/7
taking LCM
= (21 - 7 - 9)/21
= 5/21