\(\left(\dfrac{5}{7}+\dfrac{9}{7}\right)+\left(\dfrac{9}{13}+\dfrac{17}{13}\right)=\dfrac{14}{7}+\dfrac{26}{13}=2+2=4\)
a) ( 5/7 + 9/7 ) + ( 9/13 + 17/13 )
= 2 + 2
= 4
\(=\left(\dfrac{5}{7}+\dfrac{9}{7}\right)+\left(\dfrac{9}{13}+\dfrac{17}{13}\right)=\dfrac{14}{7}+\dfrac{26}{13}=2+2=4\)
5/7 +9/13 +9//7 +17/3
=(5/7+9/7)+(9/13+17/13)
= 2+2
=4
\(\dfrac{5}{7}+\dfrac{9}{13}+\dfrac{9}{7}+\dfrac{17}{13}\)
\(=\left(\dfrac{5}{7}+\dfrac{9}{7}\right)+\left(\dfrac{9}{13}+\dfrac{17}{13}\right)\)
\(=2+2\)
\(=4\)
5/7 +9/13 +9//7 +17/3
=(5/7+9/7)+(9/13+17/13)
= 2+2
=4
