Question

3/7 + 4/5 + 4/7

3/2 x 4/5 x 2/3

4/6 + 7/13 + 17/9 + 19/13 + 1/9 + 14/6

315/316 x 316 /314 x 316/315 x 317/313

Answer 1

\(\frac{315}{316}\cdot\frac{316}{314}\cdot\frac{316}{315}\cdot\frac{317}{313}=\frac{315.316.316.317}{316.314.315.313}=\frac{1.1.316.317}{1.314.1.313}=\frac{100172}{98282}\)

Answer 2

Ta có : \(\frac{3}{2}\times\frac{4}{5}\times\frac{2}{3}\)

\(=\frac{3}{2}\times\frac{2}{3}\times\frac{4}{5}=1\times\frac{4}{5}\)

\(=\frac{4}{5}\)

Answer 3

\(\frac{4}{5}\) nhé bn

Answer 4

a) 3/7 + 4/5 + 4/7

= 3/7 + 4/7 + 4/5

=        1      + 4/5

=             9/5

b)  3/2 x 4/5 x 2/3

 = 3/2 x 2/3 x 4/5 

 =     1         x 4/5

 =           4/5

Answer 5

4 phan 5 nhe

Answer 6

4/5 nhe