梅君明 (3/4×0.75+3/4×0.25)÷6/7（简算）

(3/4×0.75+3/4×0.25)÷6/7（简算）  

(3/4×0.75+3/4×0.25)÷6/7（简算）

(3/4×0.75+3/4×0.25)÷6/7
=3/4x(0.75+0.25)x7/6
=3/4x7/6
=7/8

简算：8/7*75％+0.75*6/7-3/4

8/7*75％+0.75*6/7-3/4
=8／7×3／4＋3／4×6／7－3/4
=3／4×(8／7＋6／7－1)
=3／4×1
=3／4

简算(3+3/4/3/4+3)-(7*1/6/7*1/6)=

(3+3/4/3/4+3)-(7*1/6/7*1/6)
=(3+3/4×4/3+3）-（7/6×6/7）
=（3+1+3）-1
=6

4.8*3/4+6.2*0.75+3/4怎么简便算

4.8×3/4+6.2×0.75+3/4
=4.8×3/4+6.2×3/4+3/4
=3/4×(4.8+6.2+1)
=3/4×12
=3×3
=9

3/2 (6/5-4/3)ﾁ7ￊ98/3能简算吗

3/2 (6/5-4/3)ﾁ7ￊ98/3能简算吗
2/3+（5/6-3/4）÷3/8
=2/3+1/12*8/3
=2/3+2/9
=8/9

0.75*5/11+6/11*3/4简算

您好：

0.75*5/11+6/11*3/4
=3/4x5/11+6/11x3/4
=3/4x(5/11+6/11)
=3/4x1
=3/4
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42÷(6/5÷3/7)简算

42÷(6/5÷3/7)
=42÷(6/5x7/3)
=42÷42/15
=42x15/42
=15

8.45*3/4+2.55*0.75-3/4 简算

8.45*3/4+2.55*0.75-3/4
=8.45*0.75+2.55*0.75-1*0.75
=0.75*(8.45+2.55-1)
=0.75*10
=7.5

4/7×6/13+3/7÷13/6能简算要简算

=4/7×6/13+3/7×6/13
=（4/7+3/7）×6/13
=1×6/13
=6/13

3/4×1/5 3/4乘0.75乘2/5 3/5-3/4简算

3/4 × 1/5 = 3/20 ;
3/4 × 0.75 × 2/5 = 9/40;
3/5 - 3/4 = 3(1/5 - 1/4) = - 3/20 .