[(2/1+3/2)÷6/5-3/1]÷7/1-3/1 怎么简算 3.6×14.4+9.3×32+3.21×36 怎么简

[(2/1+3/2)÷6/5-3/1]÷7/1-3/1
=【6/7×5/6-3/1】×7-3/1
=【5/7-3/1】×7-3/1
=15/16×7-3/1
=（1+15/1）×7-3/1
=7+15/7-3/1
=7又15/2
3.6×14.4+9.3×32+3.21×36
=3.6×14.4+32.1×3.6+9.3×32
=3.6×（14.4+32.1）+9.3×32
=3.6×46.5+9.3×32
=1.8×93+93×3.2
=（1.8+3.2）×93
=5×93
=465
再问： 58×7/3＋12÷2又3/1 怎么做 我赏你分
再答： 58×7/3＋12÷2又3/1 =58×7/3+12×7/3 =（58+12）×7/3 =70×7/3 =10