A. 4,67- ( 3 5/6 - 1.3 ) =B. 2,8+1 1/3 * o,9 =
A.
4,67 -(3 5/6 -1,3) =
= 467/100 -(23/6 -13/10) =
= 467/100 -(115/30 -39/30) =
= 467/100 -76/30 =
= 1401/300 -760/300 =
= 641/300 = 2 41/300
B.
2,8 +1 1/3 *0,9 =
=28/10 + 4/3 *9/10 =
=28/10 + 36/30 =
=84/30 +36/30 =
=120/30 = 4
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A.
4,67 -(3 5/6 -1,3) =
= 467/100 -(23/6 -13/10) =
= 467/100 -(115/30 -39/30) =
= 467/100 -76/30 =
= 1401/300 -760/300 =
= 641/300 = 2 41/300
B.
2,8 +1 1/3 *0,9 =
=28/10 + 4/3 *9/10 =
=28/10 + 36/30 =
=84/30 +36/30 =
=120/30 = 4