Question

найдите значения выражения:
1)4 87/91* 15/19 * 19/15
2) 11/14*1 1/7 * 14/11
3) 1 4/5* 3,14 * 5/9
4) 3 1/7 * 4,8 * 7/22

Answer 1

1)4 87/91* 15/19 * 19/15=4 87/91
2) 11/14*1 1/7 * 14/11=1 1/7
3) 1 4/5* 3,14 * 5/9=3,14
4) 3 1/7 * 4,8 * 7/22=4,8

Answer 2

1) 15/19 * 19/15 = 1
     4 87/91 * 1 = 4  87/91
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2) 11/14 * 14/11 = 1
    1  1/7 * 1 = 1  1/7
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3) 1 4/5 * 5/9 = 9/5 * 5/9 = 1
    3,14 * 1 = 3,14
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4) 3 1/7 * 7/22 = 22/7 * 7/22 = 1
    4,8 * 1 = 4,8