Mathematics, 08.07.2019 15:00 semily74

Maria practiced for her piano recital each day for three days. the first day she practiced for 3/4 hour, the second day she practiced for 3/4 hour, the second day she practiced for 1 1/2 hours, and the third day she practiced 2 1/4 hours. by how much fid she increase the time she practiced each day?

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