1)9 3/4÷3=39/4×1/3=13/4=2 1/4
2)8,1/5,2×(-1 4/9)=8,1/5,2×(-13/9)=-2,5/0,9=-2 7/9
3)2 1/4+(-2 7/9)=13/4-25/9=117-100/36=17/36
4)8,5-4,7=3,8
5)3,8÷38=0,1
6)17/36÷1/10=17/36×10/1=170/36=7 7/36
конечный ответ =7 7/36
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Answers & Comments
1)9 3/4÷3=39/4×1/3=13/4=2 1/4
2)8,1/5,2×(-1 4/9)=8,1/5,2×(-13/9)=-2,5/0,9=-2 7/9
3)2 1/4+(-2 7/9)=13/4-25/9=117-100/36=17/36
4)8,5-4,7=3,8
5)3,8÷38=0,1
6)17/36÷1/10=17/36×10/1=170/36=7 7/36
конечный ответ =7 7/36