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OpenStudy (anonymous):
8/9 + ( - 10/21 ) im a 5th grader so its hard :/
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OpenStudy (anonymous):
teach me the formula please
OpenStudy (anonymous):
Are you allowed to use decimals? Or does it have to be fractions?
OpenStudy (anonymous):
fractions
OpenStudy (anonymous):
The + - becomes -, so it says 8/9 - 10/21. You have to make the denominator the same on both sides. Do you know how to do that?
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