УМАЛЯЮ ВЫЧИСЛИТЕ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!. Created by maksmixaevich. matematika-ru

УМАЛЯЮ ВЫЧИСЛИТЕ!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!...

Tasdaser (5/18 + 7/12 ) * 2 10/31 + 1 13/51 : (4/17 - 20/51 ) =
выражением:
= ( 10/36 + 21/36 ) * 72/31 + 64/51 : ( 12/51 - 20/51 ) =
= 31/36 * 72/31 + 64/51 : (- 8/51 ) =
= 2 - 64/51 * 51/8 = 2 - 8 = -6

по действиям:
1) 5/18 + 7/12 = 10/36 + 21/36 = 31/36
2) 4/17 - 20/51 = (4*3 - 20)/51 = - 8/51
3) 31/36 * 2 10/31 = 31/36 * 72/31 = (1*2)/(1*1) = 2
4) 1 13/51 : (- 8/51) = 64/51 * (- 51/8) = - 64/8 = -8
5) 2 + (-8) = - (8-2) = - 6

2 votes Thanks 1

zhenyaM2002

Verified answer

(5/18+7/12)*2 10/31+1 13/51:(4/17-20/51)= -6
1)5/18+7/12=10/36+21/36=31/36
2)31/36* 2 10/31=31/36*72/31=2
3)4/17-20/51=12/51-20/51= -8/51
4)1 13/51:(-8/51)= -64/51*51/8= -8
5)2+(-8)= 2-8= -6

2 votes Thanks 1

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