Oblicz:
2\3+0,6
4,2-1 1\9
3,6-1 1\2
2 1\3:0,8
5,2*2\7
0,6:2\3
2 3\20+1,27
0,65:6 1\2
4,5-3\4*1\3
Od wiekszej z podanych liczb odejmij mniejsza:
0,75 i 11\16
4 3\8 i 4,41
2,11 i 2 1\9
22\7 i 3,1
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Legenda:
/ kreska ułamkowa
* znak mnożenia
2/3+0,6 = 2/3 + 6/10 = 20/30 + 18/30 = 38/30 = 1 8/30 = 1 4/15
4,2-1 1/2= 4,2 - 1,5 = 2,7
3,6-1 1/2 = 3 6/10 - 1 5/10 = 2 1/10
2 1/3 /0,8 = 7/3 : 8/10 = 7/3 * 10/8 = 70/24 = 2 22/24 = 2 11/12
5,2*2/7 = 52/10 * 2/7 = 26/5 * 2/7 = 52/35 = 1 17/35 = 1 1/2
0,6/2/3 = 6/10 : 2/3 = 6/10 * 3/2 = 18/20 = 9/10
2 3/20+1,27 = 2 15/100 + 1 27/100 = 3 42/100 = 3 21/50
0,65/6 1/2 = 65/100 / 13/2 = 65/100 * 2/13 = 1/10
4,5-3/4*1/3 = 4 1/2 - 1/4 = 4 2/4 - 1/4 = 4 1/4
Zapomniałem:
0,75 - 11/16 = 3/4 - 11/16 = 12/16 - 11/16 = 1/16
4,41 - 4 3/8 = 4,410 - 4,375 = 0,035
2 1/9 - 2,11 = 2,(1) - 2,11 = 0,00(1)
22,7 - 3,1 = 3 1/7 - 3,1 = 3,143 - 3,1 = 0,043