Помогите решить 805 пожалуйста. Created by santehmen. matematika-ru

Помогите решить 805 пожалуйста...

santehmen @santehmen

August 2022 1 9 Report

Помогите решить 805
пожалуйста

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кляча

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= 5/2*(2/15 - 21/6) - 11/4 = - 11 1/6
1) 2/15 - 21/6 = 4/30 - 105/30 = - 101/30
2) 5/2 * (-101/30) = - 101/12
3) - 101/12 - 11/4 = - 101/12 - 33/12 = - 134/12 = - 11 2/12 = - 11 1/6
----------------------------------------------------
= - 8/7*(4/5 + 19/20) * (41/6 + 14/3) = - 8 1/20
1) 4/5 + 19/20 = 16/20 + 19/20 = 35/20
2) 41/6 + 14/3 = 41/6 + 28/6 = 69/6 = 23/2
3) - 8/7 * 35/20 * 23/2 = - 161/20 = - 8 1/20
-------------------------------------------
= (51/8 - 11/4)*(- 4) +7/18 - 9 = - 23 1/9
1) 51/8 - 11/4 = 51/8 - 22/8 = 29/8
2) 29/8 * (- 4) = - 29/2
3) - 29/2 + 7/18 = - 261/18 + 7/18 = - 254/18 = - 14 2/18 = - 14 1/9
4) - 14 1/9 - 9 = - 23 1/9
--------------------------------------------
= 55/6 : (4 1/3 - 8) + 24 * 3/8 = - 6 1/2
1) 4 1/3 - 8 = - 3 2/3 = - 11/3
2) 55/6 : (- 11/3) = - 5/2 = - 2 1/2
3) 24 * 3/8 = 9
4) - 2 1/2 + 9 = - 6 1/2

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