wartość wyrażenia 4-3:(2 1/4+1,25) wynosi: a : 7/34 b . 2/7 c. 3 i 1/7 d . 4 i 6/7
4-3:(2 1/4+1,25) = 4 - 3:(2,25 + 1,25) = 4 - 3:3,5 = 4 - 30/35 = 3 i 35/35 - 30/35 = 3 i 5/35 = 3 i 1/7
odp c
4-3:(2 1/4+1,25) = 4-3 : (9/4 + 5/4) = 4-3 : 14/4 = 4-3 * 4/14 = 4 - 12/14 = 4- 6/7 = 28/7 - 6/7 = 22/7 = 3 i 1/7 czyli odp c
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4-3:(2 1/4+1,25) = 4 - 3:(2,25 + 1,25) = 4 - 3:3,5 = 4 - 30/35 = 3 i 35/35 - 30/35 = 3 i 5/35 = 3 i 1/7
odp c
4-3:(2 1/4+1,25) = 4-3 : (9/4 + 5/4) = 4-3 : 14/4 = 4-3 * 4/14 = 4 - 12/14 = 4- 6/7 = 28/7 - 6/7 = 22/7 = 3 i 1/7 czyli odp c