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Yuliya22 [10]
2 years ago
8

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

Mathematics
2 answers:
yawa3891 [41]2 years ago
7 0

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.
Daniel [21]2 years ago
3 0

9. 1/18

10. 1/18

<u>Here is how I got my answer for 9:</u>

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

<u>Here is how I got my answer for 10:</u>

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

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