Oblicz: 3,5 x 1/7 + 1,8 x 2/9 =
10,6 : ( 2 1/4 + 2,75) =
=
a
35/10* 1/7 + 18/10 * 2/9 = 1/2 + 2/5 =5/10 + 4/10 = 9/10
b
10,6 : ( 2,25 + 2,75 ) = 10,6 : 5 = 2,12
3,5x1/7+1,8x2/9=3 5/10x1/7+1 8/10x2/9=35/10x1/7+18/10x2/9=5/10+2 /5=9/10
10,6:(2 1/4+2,75)=10,6:(2 1/4+2 3/4)=10,6:5=10 6/10x1/5=106/10x1/5=106/50=2 6/50=2 3/25
Pozdro.
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a
35/10* 1/7 + 18/10 * 2/9 = 1/2 + 2/5 =5/10 + 4/10 = 9/10
b
10,6 : ( 2,25 + 2,75 ) = 10,6 : 5 = 2,12
3,5x1/7+1,8x2/9=3 5/10x1/7+1 8/10x2/9=35/10x1/7+18/10x2/9=5/10+2 /5=9/10
10,6:(2 1/4+2,75)=10,6:(2 1/4+2 3/4)=10,6:5=10 6/10x1/5=106/10x1/5=106/50=2 6/50=2 3/25
Pozdro.