Ответ:
Пошаговое объяснение:
1) -2/5*8(-2¹/₂)=(2*8*5)/(5*2)=8; 7/9*(-5)*(-1²/₇)= (7*5*16)/(9*7)=80/9=8⁸/₉; -1/4*1¹/₃*(-3³/₄)=(1*4*15)/(4*3*4)=15/12=5/4=1¹/₄;
2) -5/6*7*3/10= - (5*7*3)/(6*10)= -7/4; 1¹/₂*(-5/12)*(-2/3)=(5*5*2)/(2*12*3)=25/36; -12*(-1⁵/₆)(-1/22)= -(12*11*1)/(6*22)= -1
3) 1¹/₃*(-4/5)*(-3/8)=(4*4*3)/(3*5*8)=4/10; -5/16*(-1/15)*(-18)= -(5*1*18)/(16*15)= -3/8; -3/10*(-5/9)*2²/₅=(3*5*12)/(10*9*5)=2/5
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Ответ:
Пошаговое объяснение:
1) -2/5*8(-2¹/₂)=(2*8*5)/(5*2)=8; 7/9*(-5)*(-1²/₇)= (7*5*16)/(9*7)=80/9=8⁸/₉; -1/4*1¹/₃*(-3³/₄)=(1*4*15)/(4*3*4)=15/12=5/4=1¹/₄;
2) -5/6*7*3/10= - (5*7*3)/(6*10)= -7/4; 1¹/₂*(-5/12)*(-2/3)=(5*5*2)/(2*12*3)=25/36; -12*(-1⁵/₆)(-1/22)= -(12*11*1)/(6*22)= -1
3) 1¹/₃*(-4/5)*(-3/8)=(4*4*3)/(3*5*8)=4/10; -5/16*(-1/15)*(-18)= -(5*1*18)/(16*15)= -3/8; -3/10*(-5/9)*2²/₅=(3*5*12)/(10*9*5)=2/5