计算题,急啊!!!

3/5+(1/4+1/3)+2/5+13/20 (简便方法,过程)
2024-11-17 23:26:03
推荐回答(5个)
回答1:

3/5+(1/4+1/3)+2/5+13/20=3/5+2/5+(1/4+13/20)+1/3=1+9/10+1/3=77/30
如果 别人有更简单的就用别人的吧

回答2:

解:3/5+(1/4+1/3)+2/5+13/20
=(3/5+2/5)+1/3+(1/4+1/4)+2/5
=1+1/2+1/3+2/5
=1+5/6+2/5
=1+37/30
=2又7/30

回答3:

原式=12/20+8/20+13/20+(3/12+4/12)
=33/20+7/12
=198/120+70/120
=268/120
=67/30

回答4:

不用着急,加法交换律,自己慢慢算吧、

回答5:

3/5+(1/4+1/3)+2/5+13/20
=1+1/4+13/20 +1/3
=1+18/20+1/3
=1+9/10+1/3
=1+(27+10)/30
=67/30