9 ⅜ : (1½)³ - 1 ⅚ =
ja bym to tak zrobiła ;)
....= 9 3/8: (3/2)3- 1 5/8 = 75/8: 27/8-13/5= 75/1* 1/27 (<---- po skróceniu) - 13/5=15/27- 13/1 (<--- po skróceniu) =2/26=1/13
=75/8 : 27/8 - 1 5/6= 75/8 * 8/27 - 1 5/6= 25/9 - 1 5/6= 2 7/9 - 1 5/6= 2 14/18 - 1 15/18= 1 32/18 - 1 15/18= 17/18
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ja bym to tak zrobiła ;)
....= 9 3/8: (3/2)3- 1 5/8 = 75/8: 27/8-13/5= 75/1* 1/27 (<---- po skróceniu) - 13/5=15/27- 13/1 (<--- po skróceniu) =2/26=1/13
=75/8 : 27/8 - 1 5/6= 75/8 * 8/27 - 1 5/6= 25/9 - 1 5/6= 2 7/9 - 1 5/6= 2 14/18 - 1 15/18= 1 32/18 - 1 15/18= 17/18