3339+17661/87的简便计算

问题描述:

3339+17661/87的简便计算

3339+17661/87
=3339+(17661+9-9)/(3×29 )=3339+(17670-9)/(3×29)
=3339+(5890-3)/29=3339+5887/29
=3339+(5887-87+87)/29=3339+(5800+87)/29
=3339+(200+3)
=3542

3339+17661/87
=3339+(17661÷3)/(87÷3)
=3339+5887/29
=3339+(5887÷29)/(29÷29)
=3339+203
=3542