Ответ:
Объяснение:
1) ((7/2)-2) *((9/15) -(5/15)) =(3/2) *(4/15) =
12/30
2) 2,4-4,4=-2
(7/2-2/1)*(3/5-1/3)=приводим к общ. знаменателю
=(3,5-2)*(9/15-5/15)=15/10*4/15=4/10=2/5=0,4
2,4+(-4,4)=-4,4+2,4=-2
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Verified answer
Ответ:
Объяснение:
1) ((7/2)-2) *((9/15) -(5/15)) =(3/2) *(4/15) =
12/30
2) 2,4-4,4=-2
Verified answer
(7/2-2/1)*(3/5-1/3)=приводим к общ. знаменателю
=(3,5-2)*(9/15-5/15)=15/10*4/15=4/10=2/5=0,4
2,4+(-4,4)=-4,4+2,4=-2