вычислите
1/2 - 0.3 =
-2/3 + 0.1 =
-2/7 * 1.4 =
0.48 : ( - 12/13) =
-2 1/4 + 1.7 =
1 1/3 - 3.3 =
1 1/5 * ( - 2.5) =
-3.25 : 2 1/2 =
1/2 - 0.3 =
-2/3 + 0.1 =
-2/7 * 1.4 =
0.48 : ( - 12/13) =
-2 1/4 + 1.7 =
1 1/3 - 3.3 =
1 1/5 * ( - 2.5) =
-3.25 : 2 1/2 =
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Answers & Comments
0,566
0,392
-0,52
-3,55
0,3
-5,5
-0,07
-2/3 + 0,1 = -2/3 + 1/10 = (-20+3)/30 = -17/30
-2/7 * 1,4 = -2/7 * 7/5 = -2/5
0,48 : ( -12/13 ) = 12/25 * ( - 13/12 ) = -13/25
-2 1/4 + 1,7 = -2,25 + 1,7 = -0,55
1 1/3 - 3,3 = 4/3 - 33/10 = (40-99)/30 = - 59/30 = - 1 29/30
1 1/5 * ( - 2,5 ) = 6/5 * ( - 5/2 ) = - 3
- 3,25 : 2 1/2 = - 13/4 : 5/2 = - 13/4 * 2/5 = - 13/10 = - 1,3