58问答库 > 简便计算第一题:5分之3×3.7+3.6+6.3×5分之3第二题:(4分之3×7.2+2.8×0.75)÷1.5

简便计算第一题:5分之3×3.7+3.6+6.3×5分之3第二题:(4分之3×7.2+2.8×0.75)÷1.5

2025-02-08 03:58:24

推荐回答（1个）

回答（1）：

3/5×3.7+3.6+6.3×3/5
=3/5×(3.7+6.3)+3.6
=3/5×10+3.6
=6+3.6
=9.6
(3/4×7.2+2.8×0.75)÷1.5
=[3/4×(7.2+2.8)]×2/3
=3/4×2/3×10
=1/2×10
=5
6/11÷(1/2+4/5÷8/15)
=6/11÷(1/2+4/5×15/8)
=6/11÷(1/2+3/2)
=6/11÷2
=3/11
117.4-17.4÷0.4+0÷7.61
=117.4-43.5+0
=73.9
设:运回这批水果原来一共x千克
35%x+35%x+60+1/4x=x
(1-0.25-0.35-0.35)x=60
0.05x=60
x=1200

简便计算 第一题:5分之3×3.7+3.6+6.3×5分之3第二题:(4分之3×7.2+2.8×0.75)÷1.5

简便计算第一题:5分之3×3.7+3.6+6.3×5分之3第二题:(4分之3×7.2+2.8×0.75)÷1.5