简便计算:2-4/9×3/8 60×(1/4+4/15+3/20) 444×4/4432-4/9×3/8= 60×(1/4+4/15+3/20)= 444×4/443=

来源:学生作业帮助网 编辑:作业帮 时间:2024/05/03 21:52:59
简便计算:2-4/9×3/8 60×(1/4+4/15+3/20) 444×4/4432-4/9×3/8= 60×(1/4+4/15+3/20)= 444×4/443=

简便计算:2-4/9×3/8 60×(1/4+4/15+3/20) 444×4/4432-4/9×3/8= 60×(1/4+4/15+3/20)= 444×4/443=
简便计算:2-4/9×3/8 60×(1/4+4/15+3/20) 444×4/443
2-4/9×3/8= 60×(1/4+4/15+3/20)= 444×4/443=

简便计算:2-4/9×3/8 60×(1/4+4/15+3/20) 444×4/4432-4/9×3/8= 60×(1/4+4/15+3/20)= 444×4/443=
2-4/9×3/8
=2-1/9×3/2
=2-1/6
=11/6
60×(1/4+4/15+3/20)
=60×1/4+60×4/15+60×3/20
=15+16+9
=40
444×4/443
=(443+1)×4/443
=443×4/443+4/443
=4+4/443
=4又4/443