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Determinati : a) a) catul dintre 31/ 12 si diferenta fractiilor 3 intregi si 1/ 5 si 2 intregi si 1/ 6

Răspuns :

Dayanna123456
3 intregi 1/3-2intregi1/6=16/5-13/6=96/30-85/30=11/30
31/12:11/30=31/12*30/11=11/30
Coco0987
31/12 : ( 3intreg 1/5 - 2intreg 1/6 ) = 
3intreg 1/5 = ( 5x3+1)/5= 16/5
2intreg 1/6 = ( 6x2+1)/6 =13/6
31/12 : ( 16/5 - 13/6) =
31/12: ( (16x6)/30 - (13x5)/30) =
31/12 : ( 96/30 - 65/30) =
31/12 : 31/30 = 31/12 x 30/31 = 5/2

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