penyederhanaan dari 5/7-3/13

[tex] \frac{-21+65}{91} = \frac{44}{91} [/tex]Ketikkan jawabanmu di sini

[tex] \frac{5}{7} [/tex]  [tex] -\frac{3}{13} [/tex] = [tex] \frac{65+21}{91} [/tex]
= [tex] \frac{86}{91} [/tex]