Question

17/15 x 4/11 +  8/15 x 4/11 = ?

Answer 1

17/15 x 4/11 + 8/15 x 4/11

= 4/11 x (17/15 + 8/15)

= 4/11 x 5/3

= 20/33

Answer 2

\(\frac{13}{19}\times\left(\frac{19}{13}-\frac{7}{9}\right)\)

\(=\frac{13}{19}\times\frac{19}{13}-\frac{13}{19}\times\frac{7}{9}\)

\(=1-\frac{117}{361}\)

\(=\frac{244}{361}\)

\(\frac{17}{15}\times\frac{4}{11}+\frac{8}{15}\times\frac{4}{11}\)

\(=\frac{4}{11}\times\left(\frac{17}{15}+\frac{8}{15}\right)\)

\(=\frac{4}{11}\times\frac{5}{3}\)

\(=\frac{20}{33}\)