Odpowiedzi

2009-10-01T14:40:58+02:00
2/5:0,77=40/100 : 77/100 = 40/100 × 100/77 = 40/77
15,4+3 1/3= 77/5 + 10/3 = 231/15 + 50/15= 281/15
1,75-5/6=7/4-5/6=21/12-10/12=11/12
3 1/5 - 2,25= 3,2-2,25=0,95
8 3/4 + 1,125 = 8,75+1,125=9,875
6,4×5/8= 64/10×5/8=4
2/15×0,75=2/15×3/4=1/10
1 3/7 × 0,056= 10/7×56/1000=8/100
2,4 ×1 1/4= 2,4×1,25=3
2 5/6 / 3,5= 17/6×10/35=17/21
1 5 1
2009-10-01T14:43:21+02:00
No więc : 2/5 ; 0,77=0,4 : 0,77= 2/5 * 100/77= 40/77
15,4+ 3 1/3 = 15 i 2/5 + 3 1/3 = 15 i 6/15 + 3 5/15 = 18 11/15
1,75 - 5/6=1 3/4 - 5/6=1 9/12 - 10/12=11/12
3 1/5 - 2.25=3 ,2- 2.25=0,95
8 3/4 + 1 . 12=8,75+ 1 . 12=9,87
6,4 * 5/8=6,4 * 0,625=4
2/15 * 0,75=2/15 * 3/4=1/10
1 3/7 * 0,056=10/7 * 56/1000=1/7 * 56/100=56/700=8/100=2/25
2,4 * 1 1/4=2,4 * 1 ,25=3
2 5/6 ; 3.5=2 5/6 ; 3.5=17/6:35/10=17/6 *2/7=17/3 *1/7=17/21


z góry THX
1 5 1
2009-10-01T14:48:24+02:00
2/5 ; 0,77==
=0,4 : 0,77=
= 2/5 * 100/77=
= 40/77

15,4+ 3 i 1/3 =
=15 i 2/5 + 3i 1/3 =
=15 i 6/15 + 3i 5/15 =
=18 i 11/15

1,75 - 5/6=
=1 3/4 - 5/6=
=1 9/12 - 10/12=
=11/12

3 i1/5 - 2,25=
=3 ,2- 2,25=
=0,95

8 i 3/4 + 1 , 12=
=8,75+ 1 , 12
=9,87

6,4 * 5/8=
=6,4 * 0,625=
=4
2/15 * 0,75=
=2/15 * 3/4=
=1/10

1 3/7 * 0,056=
=10/7 * 56/1000=
=1/7 * 56/100=
=56/700=
=8/100=
=2/25
2,4 * 1 1/4=
=2,4 * 1 ,25=
=3
2 5/6 ; 3.5=2 5/6 ; 3.5=17/6:35/10=17/6 *2/7=17/3 *1/7=17/21