(-1 1/2)+(- 1/6)= (-1 1/2)+(-2/3)= (-3.4)+4
2个回答
-17/3
-37/3
0.9
-2/3
相关问题
(1/1+2)+(1/1+2+3)+(1/1+2+3+4)+(1/1+2+3+4+5)+.+(1/1+2+3+4+5+6
(1+2+3+4/1)+(1+2+3+4+5/1)+(1+2+3+4+5+6/1)+.+(1+2+3+4+.+99/1)
计算1/2+(1/4+2/4+3/4)+(1/6+/2/6+3/6+4/6+5/6)+``````+(1/2010+2/
1.3x + 1.2 =4.5 2.1/2:1/3 =1/4:x 3.3/4x - 2 =1.6 4.(0.4+x)×6
按分数规律写分数.0/1,1/2,2/1,1/4,2/3,3/2,4/1,1/6,2/5,3/4,4/3,5/2,6/1
:(1/2+2/3+3/4+4/5+5/6+6/7)+(1/2+2/3+3/4+4/5+5/6+6/7)*1/2—(1+
1.(1+2.3+3.4)*(2.3+3.4+6.5)-(1+2.3+3.4+6.5)*(2.3+3.4)
1计算.①.42*(-2/3)+(-3/4) 除 (-1/4)= 2 .-1^4 - 1/6 * [2-(-3)]^2
1/2+1*3/(2*4)+1*3*5/(2*4*6).
1+1=2,2+2=4,3+3=6,4+4=?