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anonymous

  • one year ago

simple fraction problem!

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  1. anonymous
    • one year ago
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    (1/3 + 5/8) x 4/5 =

  2. anonymous
    • one year ago
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    write answer in simplest form please!

  3. freckles
    • one year ago
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    hello!

  4. freckles
    • one year ago
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    you can find a common denominator to add the fractions inside the ( )

  5. anonymous
    • one year ago
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    how

  6. freckles
    • one year ago
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    hint:3 and 8 both go into 24

  7. anonymous
    • one year ago
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    then you change both of the denominator too 24

  8. freckles
    • one year ago
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    yes but whatever you multiply the bottoms to get that 24 you will also have to multiply that same number to the top

  9. freckles
    • one year ago
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    example" \[\frac{1}{3} =\frac{1 \cdot 8 }{3 \cdot 8}=\frac{8}{24}\]

  10. freckles
    • one year ago
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    you write the other fraction as some number over 24

  11. freckles
    • one year ago
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    \[\frac{5}{8}=\frac{5 \cdot ?}{8 \cdot ?}=\frac{-}{24}\]

  12. anonymous
    • one year ago
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    5/24

  13. freckles
    • one year ago
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    well no 5 times 3 isn't going to be 5

  14. anonymous
    • one year ago
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    15/24

  15. freckles
    • one year ago
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    \[\frac{5}{8} =\frac{ 5 \cdot 3}{8 \cdot 3}=\frac{15}{24}\] right

  16. freckles
    • one year ago
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    \[(\frac{1}{3}+\frac{5}{8}) \frac{4}{5} \\ (\frac{8}{24}+\frac{15}{24})\frac{4}{5} \\ (\frac{8+15}{24})\frac{4}{5}\]

  17. freckles
    • one year ago
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    now find the sum of 8 and 15

  18. freckles
    • one year ago
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    then when done you can reduce then multiply or multiply then reduce

  19. anonymous
    • one year ago
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    well 8 does not go into 15

  20. freckles
    • one year ago
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    why are you dividing 15 by 8?

  21. freckles
    • one year ago
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    + means add or to find the sum

  22. anonymous
    • one year ago
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    oh...

  23. anonymous
    • one year ago
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    ik

  24. freckles
    • one year ago
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    well have you done 8+15 yet?

  25. freckles
    • one year ago
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    |dw:1441049136428:dw| which should make sense since if you start with 8 apples and you are given 15 more apples then you should have 23 apples.

  26. freckles
    • one year ago
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    \[(\frac{1}{3}+\frac{5}{8}) \frac{4}{5} \\ (\frac{8}{24}+\frac{15}{24})\frac{4}{5} \\ (\frac{8+15}{24})\frac{4}{5} \\ \frac{23}{24} \cdot \frac{4}{5} \\ \frac{4}{24} \cdot \frac{23}{5} \text{ multiplication is commuative }\] cam you reduce 4/24?

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