Question

tinh nhanh

\(\frac{\frac{3}{4}-\frac{3}{5}+\frac{3}{7}+\frac{3}{11}}{\frac{13}{4}-\frac{13}{5}+\frac{13}{7}+\frac{13}{11}}\)

Answer 1

[3.(1/4-1/5+1/7+1/11)] / [13.(1/4-1/5+1/7+1/11)]

=3/13

tk tui nha

Answer 2

=3/12

Answer 3

Tôi ấn nhầm đáng lẽ =3/13 chứ

Answer 4

=3/13

Answer 5

\(\frac{3\left(\frac{1}{4}-\frac{1}{5}+\frac{1}{7}+\frac{1}{11}\right)}{13\left(\frac{1}{4}-\frac{1}{5}+\frac{1}{7}+\frac{1}{11}\right)}=\frac{3}{13}\)

Answer 6

\(\frac{3\left(\frac{1}{4}-\frac{1}{5}+\frac{1}{7}+\frac{3}{11}\right)}{13\left(\frac{1}{4}-\frac{1}{5}+\frac{1}{7}+\frac{1}{11}\right)}\)\(=\frac{3}{13}\)

Answer 7

\(\frac{\frac{3}{4}-\frac{3}{5}+\frac{3}{7}+\frac{3}{11}}{\frac{13}{4}-\frac{13}{5}+\frac{13}{7}+\frac{13}{11}}=\frac{3}{13}\)