Question

m=3/5+3/7-3/11  (tính nhanh)

     4/5+4/7-4/11

Answer 1

\(m=\frac{\frac{3}{5}+\frac{3}{7}-\frac{3}{11}}{\frac{4}{5}+\frac{4}{7}-\frac{4}{11}}=\frac{3\left(\frac{1}{5}+\frac{1}{7}-\frac{1}{11}\right)}{4\left(\frac{1}{5}+\frac{1}{7}-\frac{1}{11}\right)}=\frac{3}{4}\)

Answer 2

m=3(1/5+1/7-1/11)

     4(1/5+1/7-1/11)

=3/4

vậy m=3/4

Answer 3

thanks bạn nha

mình đang cần ^^