Предмет: Математика, автор: rkenzi

Выполните действия помогите пж
3/5*4/9+1 1/3
1 1/4*2/5-1/3
3/8:1/2+3 1/4
1 2/5: 5/7+3/8
2 1/3:1 5/9 -5/6

Ответы

Автор ответа: mz2017
0
1) =1/5*4/9*1/3=4/15+1/3=4+5/15=9/15=3/5=0.6
2)=1/2*1/5-1/3=1/10-1/3=3-10/30=-7/30
3)=3/8*2+3/4=3/4+3/4=3+3/4=6/4=3/2=1,5
4)=2/5*7/5+3/8=14/25+3/8=112+75/200=187/200=0,935
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