Question

11/19 x 13/17+8/19x13/7

 

Answer 1

\(\dfrac{11}{19}\times\dfrac{13}{17}+\dfrac{8}{19}\times\dfrac{13}{7}\\ =\dfrac{143}{323}+\dfrac{104}{133}\\ =\dfrac{2769}{2261}\)

Answer 2

Answer 3

\(11/19.13/17+8/19.13/17\)
\(=\dfrac{13}{17}\left(\dfrac{11}{19}+\dfrac{8}{19}\right)\)
\(=\dfrac{3}{17}.1=\dfrac{3}{17}\)
 

Answer 4

\(\dfrac{11}{19}.\dfrac{13}{17}+\dfrac{8}{19}.\dfrac{13}{7}\Rightarrow\dfrac{11}{19}.\dfrac{13}{17}+\dfrac{8}{19}.\dfrac{13}{17}\\ =\dfrac{13}{17}\left(\dfrac{11}{19}+\dfrac{8}{19}\right)\\ =\dfrac{13}{17}.1\\ =\dfrac{13}{17}\)

 

Answer 5

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