Question

tính nhanh :

\(\frac{12-\frac{12}{7}-\frac{12}{289}-\frac{12}{85}}{4-\frac{4}{7}-\frac{4}{289}-\frac{4}{85}}\): \(\frac{3+\frac{3}{13}+\frac{3}{169}+\frac{3}{91}}{7+\frac{7}{13}+\frac{7}{169}+\frac{7}{91}}\)

Answer 1

Đấm zô đúng thì biết câu trả lời của mình hay lắm đó cứ thử đi

Answer 2

\(=\frac{12.\left(1-\frac{1}{7}-\frac{1}{289}-\frac{1}{85}\right)}{4.\left(1-\frac{1}{7}-\frac{1}{289}-\frac{1}{85}\right)}:\frac{3.\left(1+\frac{1}{13}+\frac{1}{169}+\frac{1}{91}\right)}{7.\left(1+\frac{1}{13}+\frac{1}{169}+\frac{1}{91}\right)}\)

\(=\frac{12}{4}:\frac{3}{7}=3.\frac{7}{3}=7\)

Answer 3

=7/19 nhé do tien toan

Answer 4

= 12/4:3/7=7

Tick cho minh nhe Toan!!!!!!!