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Mathematics, 24.08.2019 04:00 astarkey14

Richard practice each of 3 piano solos for 5/12 hour. how long he practice in all? . i have 4 answer and i don't undertand 2/3 hours , 1 1/4 hours, 1 1/3 hours, and 1 5/12 hours. for me.

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Richard practice each of 3 piano solos for 5/12 hour. how long he practice in all? . i have 4 answer...
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