3,2(7) =3 целых 5/18 2,(6) = 2 целых 2/3 0,04 = 4/100 = 1/25
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2 1/6 + (5 7/30 - 3 5/18) : 2 2/3 : 1/25 = 11 целых 1/8
1) 5 7/30 - 3 5/18 = 5 21/90 - 3 25/90 = 4 111/90 - 3 25/90 = 86/90 = 43/45
2) 43/45 : 2 2/3 = 43/45 : 8/3 = 43/45 * 3/8 = (43*1)/(15*8) = 43/120
3) 43/120 : 1/25 = 43/120 * 25/1 = (43*5)/(24*1) = 215/24 = 8 23/24
4) 2 1/6 + 8 23/24 = 2 4/24 + 8 23/24 = 10 27/24 = 11 3/24 = 11 1/8