Question

I wonder if I did #9 right and I’m having trouble with #10

Answer 1

Let's see....

QUESTION: Add. Write your answer as a mixed number in simplest form.


`6 (7)/(9) + 9 (8)/(9)`

1. Rewriting our equation with parts separated


`=6+ (7)/(9) +9+ (8)/(9)`

2. Solving the whole number parts


`6+9=15`

3. Solving the fraction parts


`(7)/(9) + (8)/(9) = (15)/(9)`

4. Reducing the fraction part, 15/9,


`(15)/(9) = (5)/(3)`

5. Simplifying the fraction part, 5/3,


`(5)/(3) = 1(2)/(3)`

6. Combining the whole and fraction parts


`15+1+ (2)/(3) =16 (2)/(3)`

ANSWER:
`16(2)/(3)`

Hope that helps!

Answer 2

9
It's correct. The only problem is entering it. Is a fraction OK or do you need to break it down to 16.6666

10
I don't wonder that you are having trouble with this.

Do it in parts.
numerator
3/4 - 3/2 = 3/4 - 6/4 = - 3/4 Notice what happened. You multiplied top and bottom of 3/2 by 2
= 3*2 = 6
2 * 2 = 4

Now do the denominator
1/4 - 3/5 =
5/20 - 12/20
= - 7/20

What do you have?
-3/4 // - 7/20 Now invert and multiply
- 3/4 * - 20 /7
= 60/ 28
= 15 / 7 Where did the two minus' go?