dementedanchor dementedanchor

07-12-2017
Mathematics

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Sal took four quizzes this grading period in Algebra II. He made a 56/72, 28/32, 70/90, and 42/56. Which two grades are equivalent?

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07-12-2017

56/72 can be simplified to 14/18, then to 7/9 *dividing by 4, then by 2*

28/32 can be simplified to 7/8 *dividing by 4*

70/90 can be simplified to 7/9 *dividing by 10*

7/9 and 7/9 are equivalent, so 56/72 and 70/90 are equivalent.

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