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Mathematics 20 Online
OpenStudy (anonymous):

help multiplying this?

OpenStudy (anonymous):

OpenStudy (anonymous):

add \(\frac{3}{4}+\frac{1}{9}\)

OpenStudy (anonymous):

When multiplying exponents, you add them Example: \[x ^{7} \times x ^{10}\] = \[x ^{7 + 10} = x ^{17}\] So just make a common denominator between 3/4 and 1/9 --> and then add

OpenStudy (anonymous):

Do you know what it would be for 4 & 9?

OpenStudy (anonymous):

no not for 4&9

OpenStudy (anonymous):

Then?

OpenStudy (anonymous):

\[\frac{a}{b}+\frac{c}{d}=\frac{ad+bc}{bd}\] always works

OpenStudy (anonymous):

|dw:1357093302146:dw|

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