Question

4/5 of 5/7 of a number is greater than 4/9 of 2/5 of the same number by 8. what is half of that number? please solve it step by step. im poor in Math​

Answer 1

MARK AS BRAINLIEST

Answer: The number is x=630 and the half of that number is=\frac{630}{2}=315

2

630

=315

Step-by-step explanation:

Let that number be=x, then according to question, the required equation is:

\frac{4}{15}{\times}\frac{5x}{7}-(\frac{4}{9}{\times}\frac{2x}{5})=8

15

4

×

7

5x

−(

9

4

×

5

2x

)=8

⇒\frac{4x}{21}-\frac{8x}{45}=8

21

4x

−

45

8x

=8

Taking the LCM on the left hand side of the above equation, we get

⇒\frac{60x-56x}{315}=8

315

60x−56x

=8

⇒4x=25204x=2520

⇒x=\frac{2520}{4}x=

4

2520

⇒x=630x=630

Hence, the number is x=630 and the half of that number is=\frac{630}{2}=315

2

630

=315