выполни действие:
а) 2/5 * 3/8
б) 5* 2/11
в) 3/5*10/21
г) 3/5*1 2/3
д)15/16*8/9
е) 3 1/2 * 2 1/3
а) 2/5 * 3/8
б) 5* 2/11
в) 3/5*10/21
г) 3/5*1 2/3
д)15/16*8/9
е) 3 1/2 * 2 1/3
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Answers & Comments
б) 5 * 2/11 = 10/11
в) 3/5 * 10/21 = 2/7
г) 3/5 * 1 2/3 = 1
д) 15/16 * 8/9 = 5/6
е) 3 1/2 * 2 1/3 = 7/2 * 7/3 = 49/6 = 8 1/6