oblicz;
-5 3/5- 2 3/4+3 4/7+3/5 +1 3/4-2 1/7=
2,4- 0,72-6,173-1,4+0,173+0,72=
-7,2+1,42-12,13+0,58-2,8+2,13=
prosze o obloczenia?;p
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-5 3/5- 2 3/4+3 4/7+3/5 +1 3/4-2 1/7= -28/5 - 11/4 + 25/7 + 3/5 + 7/4 - 15/7 = -28/5 + 3/5 - 11/4 + 7/4 + 25/7 - 15/7 = -25/5 - 4/4 + 10/7 = - 5 - 1 + 1 3/7 = - 6 + 1 3/7 = - 4 4/7
2,4- 0,72-6,173-1,4+0,173+0,72= 2,4 - 1,4 - 0,72 + 0,72 - 6,173 + 0,173 = 1 - 6 = -5
-7,2+1,42-12,13+0,58-2,8+2,13= -7,2 - 2,8 + 1,42 + 0,58 - 12,13 + 2,13 = -10 + 2 -10 = -18