Помогите пожалуйста! (7 1/2 * 2 2/3 - 12 1/4 : 7/9) : 6 + 3 1/8 + 5 2/7=. Created by 79234707832. matematika-ru

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(7 1/2 * 2 2/3 - 12 1/4 : 7/9) : 6 + 3 1/8 + 5 2/7=

ndusha

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(7 1/2 * 2 2/3 - 12 1/4 : 7/9) : 6 + 3 1/8 + 5 2/7=9 5/42
1)7 1/2 * 2 2/3=15/2*8/3=5/2*8/1=5/1*4/1=20
2)12 1/4 : 7/9=49/4*9/7=7/4*9/1=63/4=15 3/4
3)20-15 3/4=5-3/4=4 1/4
4)4 1/4:6=17/4*1/6=17/24
5)17/24+3 1/8=17/24+3 3/24=3 20/24=3 5/6
5)3 5/6+5 2/7=3 35/42+5 12/42=8 47/42=9 5/42

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ДженниЛенни

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