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Plz help can’t find the answer

Plz help can’t find the answer-example-1
User Beingnin
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2 Answers

6 votes

multiply the 2/8 x 4/9 first

then add the 7/9

you'll get 6/9

simplify to get the answer: 2/3

User Databyte
by
8.0k points
4 votes


(7)/(9) -(2)/(8) * (4)/(9)

Start by multiplying the fractions together. When multiplying fractions they don't need to have a common denominator, so multiply 2/8 and 4/9 from left to right.


(2)/(8) * (4)/(9) = (8)/(72)

Now your new problem looks like: 7/9 - 8/72. When subtracting fractions they have to have common denominators so multiply 7/9 by 8/8.


(7)/(9) * (8)/(8)= (56)/(72)

You can now subtract 56/72 and 8/72 to get your final answer.


(56)/(72) -(8)/(72) = (48)/(72)

This fraction can be simplified by dividing both sides by 8 because the numerator and denominator of this fraction are multiples of 8 and can be divided evenly by 8.


(48)/(72) / (8)/(8) = (6)/(9)

6/9 can be simplified even further by dividing both sides by 3 because both 6 and 9 can be divided evenly by 3.


(6)/(9) / (3)/(3) = (2)/(3)

D) 2/3 is your final answer.

User Waquo
by
7.6k points

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