Question

b^8/9 * b^5/2=

Answer 1

\[x^{a}*x^{b} = x^{a+b}\]

Answer 2

In your case it is b^{8/9 + 5/2} = b^{61/18}

Answer 3

What are you multiplying by to get 61?

Answer 4

=b^(61/18)

Answer 5

8/9 + 5/2 = (2*8 + 9*5)/2*9

Answer 6

How did you get the number 61? I see that 9*2 is 18, but 8*5 is 40 not 61

Answer 7

What a formula do you use?

Answer 8

i think I get it. you cross multiply the fractions then have it over the y?

Answer 9

yes, i just add tow fractions )

Answer 10

thanks sir