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. $\frac{-6}{54} =\frac{-1}{9}$
2. Add numerators together. $\frac{9}{54} +\frac{-6}{54} = \frac{3}{54}$
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. $\frac{18}{36}+\frac{-16}{36}=\frac{2}{36}=\frac{1}{18}$
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: $1/18$