Решите 1,25-4 1/12;-2 1/8-3,4;5•(-2/3)+1,8;4,5•(-5 - вопрос №17337289125411221834523184551301251557 от irinaa10 20.11.2020 14:29

Question

Математика: Решите 1,25-4 1/12;-2 1/8-3,4;5•(-2/3)+1,8;4,5•(-5 1/3)•(-0,125);15:(-5/7)-2 1/3•(-2 1/7);-2 4/9•1,6:(-3 2/3)•1,875;​

irinaa10 · Answer

1,25-4 1/12=5/4-49/12=-17/6=-2 5/6-2 1/8-3,4=17/8-17/5=-51/41=-1 11/405•(-2/3)+1,8=-10/3+9/5=23/15= -1 8/154,5•(-5 1/3)•(-0,125)=9/2×(-16/3)×(-1/8)=3×8×1/8=315:(-5/7)-2 1/3•(-2 1/7)=-15×7/5-7/3×(-15/7)=-3×7+5=-21+5=-16-2 4/9•1,6:(-3 2/3)•1,875=2...

Решите 1,25-4 1/12;-2 1/8-3,4;5•(-2/3)+1,8;4,5•(-5 1/3)•(-0,125);15:(-5/7)-2 1/3•(-2 1/7);-2 4/9•1,6:(-3 2/3)•1,875;​

Решите 1,25-4 1/12;
-2 1/8-3,4;
5•(-2/3)+1,8;
4,5•(-5 1/3)•(-0,125);
15:(-5/7)-2 1/3•(-2 1/7);
-2 4/9•1,6:(-3 2/3)•1,875;