Найдите значение выражения

Question

Найдите значение выражения

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Answer 1

3) 5/2 * 7/2 * 9/7 * 11/9 * 13/11 + 1/2= (5*7*9*11*13)/(2*2*7*9*11)+1/2=
(5*13)/4+1/2=65/4 +2/4 = 67/4 =16 3/4

Comments

4) 7/4 * 11/7 * 15/11 * 19/15 * 23/19 - 2/3=

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ой

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=(7*11*15*19*23)/(4*7*11*15*19)-2/3= 23/4-2/3= (69-12)/12=57/12=19/4=4 3/4