Question

Can you help pls I need it it hard...

Answer 1

Answer to 9:

1. Make your denominators the same. Since 9 goes into 54 6 times, multiply the numerator and denominator of -1/9 by 6.
   `(-6)/(54) =(-1)/(9)`
2. Add numerators together.
   `image`
3. Reduce and your answer should be 1/18

Answer to 10:

1. Find the LCM (least common multiple), which is 36.
2. Multiply the numerator and denominator from 6/12 by 3 to get it to have a similar denominator as the second fraction.
3. Multiply numerator and denominator from -4/9 by 4 to get to same denominator as the first fraction.
4. Add the fractions together and reduce.
   `(18)/(36)+(-16)/(36)=(2)/(36)=(1)/(18)`
5. Your answer should be 1/18.

Answer 2

9. 1/18

10. 1/18

Here is how I got my answer for 9:

Step 1: Simply
`9/54` to
`1/6`. Which leaves us with
`1/6` -
`1/9`

Step 2: Find the least common denominator, which is 18.

Step 3: Make the denominators the same as the least common denominator. By multiplying
`6*3` and
`9*2`. Which leaves us with
`3/18` -
`2/18`.

Step 4: Subtract 3 and two, giving you your answer:
`1/18`

Here is how I got my answer for 10:

Step 1: Simplify
`6/12` to
`1/2`. Which leaves us with
`1/2` -
`4/9`

Step 2: Find the least common denominator, which is 18.

Step 3: Make the denominators the same as the least common denominator by multiplying
`2*9` and
`9*2`. Which leaves us with
`9/18 - 8/18`.

Step 4: Subtract 9 and 8, giving you your answer:
`1/18`