Answers:
a*b = 1/2
a/b = 8/9
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Explanation:
The horizontal bar over the 6 means the 6 goes on forever
So we have a = 0.66666... which converts to the fraction a = 2/3
The b = 0.75 converts to b = 3/4
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We can then say
a*b = (2/3)*(3/4)
a*b = (2*3)/(3*4)
a*b = 6/12
a*b = 1/2
and
a/b = (2/3) divide by (3/4)
a/b = (2/3)*(4/3)
a/b = (2*4)/(3*3)
a/b = 8/9
Note how I flipped the second fraction when I changed from a division to a multiplication.
