So in order to add the fractions together you need to first find a common denominator. For the very first problem you can use 63 as a denominator because 7*9=63. Now for the numerator. So you have 4/7 and 8/9. We just multiplied 7 by 9 so now we need to do that for 4 also. 4*9=36. Now we have 36/63. For 8/9 we multiply 8 by 7 to get 56. Now we have 36/63 + 56/63. Once you add those together you simplify your answer.
Answer:
-12
Step-by-step explanation:
since they are both negative you add
Answer:
I guess it's 6 but I'm not really sure about my answer
Hello!
I believe the most logical answer is 7⋅10^9
I hope it helps!
