Ответ:
1) 1/2+2/12=1/2+1/6=3+1/6=4/6=2/3
2)+=(2+3)+(1/2+1/8)=5+5/8=
3)1/2-2/12=1/2-1/6=3-1/6=2/6=1/3
4)-=25/8-5/2=5/8
5)(1/2)*(2/12)=1/12
6)*=4/3*2*3/4=2
7)(1/2)/(3/8)=1/2*8/3=4/3
8)/=9/4*3/16=27/64
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Answers & Comments
Ответ:
1) 1/2+2/12=1/2+1/6=3+1/6=4/6=2/3
2)
+
=(2+3)+(1/2+1/8)=5+5/8=
3)1/2-2/12=1/2-1/6=3-1/6=2/6=1/3
4)
-
=25/8-5/2=5/8
5)(1/2)*(2/12)=1/12
6)
*
=4/3*2*3/4=2
7)(1/2)/(3/8)=1/2*8/3=4/3
8)
/
=9/4*3/16=27/64