Answer:

⁶ ²=8÷8=1

- +. _

⁹. ⁷=16÷8=2

ANSWER:½

Answer:

20/21

Step-by-step explanation:

hi!

first step is finding the LCD

so 9x7=63

then you should also multiply the numerators 6x7/63 + 2x9/63

42/63 + 18/63

add the numerators

42+18/63

= 60/63

then simplify it to

20/21