Mathematics
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OpenStudy (anonymous):
simple fraction problem!
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OpenStudy (anonymous):
(1/3 + 5/8) x 4/5 =
OpenStudy (anonymous):
write answer in simplest form please!
OpenStudy (freckles):
hello!
OpenStudy (freckles):
you can find a common denominator to add the fractions inside the ( )
OpenStudy (anonymous):
how
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OpenStudy (freckles):
hint:3 and 8 both go into 24
OpenStudy (anonymous):
then you change both of the denominator too 24
OpenStudy (freckles):
yes but whatever you multiply the bottoms to get that 24 you will also have to multiply that same number to the top
OpenStudy (freckles):
example"
\[\frac{1}{3} =\frac{1 \cdot 8 }{3 \cdot 8}=\frac{8}{24}\]
OpenStudy (freckles):
you write the other fraction as some number over 24
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OpenStudy (freckles):
\[\frac{5}{8}=\frac{5 \cdot ?}{8 \cdot ?}=\frac{-}{24}\]
OpenStudy (anonymous):
5/24
OpenStudy (freckles):
well no 5 times 3 isn't going to be 5
OpenStudy (anonymous):
15/24
OpenStudy (freckles):
\[\frac{5}{8} =\frac{ 5 \cdot 3}{8 \cdot 3}=\frac{15}{24}\]
right
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OpenStudy (freckles):
\[(\frac{1}{3}+\frac{5}{8}) \frac{4}{5} \\ (\frac{8}{24}+\frac{15}{24})\frac{4}{5} \\ (\frac{8+15}{24})\frac{4}{5}\]
OpenStudy (freckles):
now find the sum of 8 and 15
OpenStudy (freckles):
then when done you can reduce then multiply
or multiply then reduce
OpenStudy (anonymous):
well 8 does not go into 15
OpenStudy (freckles):
why are you dividing 15 by 8?
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OpenStudy (freckles):
+ means add or to find the sum
OpenStudy (anonymous):
oh...
OpenStudy (anonymous):
ik
OpenStudy (freckles):
well have you done 8+15 yet?
OpenStudy (freckles):
|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.