Respuesta :

Answer:

[tex]\frac{3}{10}[/tex]

Step-by-step explanation:

[tex]\frac{4}{7}*\frac{21}{40}=\frac{4*21}{7*40}=\frac{1*3}{1*10}=\frac{3}{10}[/tex]

Answer: 84/280 simplfied is 3/10

Multiply

4*21= 84

7*40= 280

Answer: 84/280

Divide by 28

84/280 ÷ 28/28 = 3/10

Final/Simplfied Answer: 3/10