Question

Klasa 5 podręcznik Matematyka z plusem strona 82 zad 2 Oblicz
4\5 + 1\10
1\6 + 2\3
8\9 - 1\3
1 cała i 3\10 - 1\5
2\3 + 1\5
4\7 + 1\2
2 całe i 2\5 + 3 całe i 1\2
4całe 3\7 + 2 całe i 2 i 2\3
4\5 - 2\3
5\7 - 1\4
2 całe i 3\8 - 1 cała i 1\6
4 całe i 1\2 - 2 całe i 3\5
4 całe i 1\4 - 2 całe i 2\3
5 całych i 1\9 - 1 cała i 5\6
2 całe i 1 \15 - 1\10
5 całych 5\13 - 3 całe i 1\2

Answer 1

4/5 + 1/10 = 8/10 + 1/10 = 9/10
1/6 + 2/3 = 1/6 + 4/6 = 5/6
8/9 - 1/3 = 8/9 - 3/9 = 5/9
13/10 [3/10 + 10/10 (1)] - 1/5 = 13/10 - 2/10 = 11/10
2/3 + 1/5 = 10/15 + 3/15 = 13/15
4/7 + 1/2 = 8/14 + 7/14 = 15/14
12/5 + 7/2 = 24/10 + 35/10 = 59/10
31/7 + 8/3 = 93/21 + 56/21 = 149/21
4/5 - 1/3 = 12/15 - 5/15 = 7/15
5/7 - 1/4 = 20/28 - 7/28 = 13/28
19/8 - 7/6 = 57/24 - 28/24 = 29/24
 9/2 - 13/5 = 45/10 - 26/10 = 19/10
17/4 - 8/3 = 51/12 - 32/12 = 19/12
46/9 - 11/6 = 276/45 - 99/45 = 177/45
31/15 - 1/10 = 62/30 - 3/30 = 59/30
70/13 - 7/2 = 140/26 - 91/26 = 49/26

Jeśli się pomyliłem, bardzo przepraszam.

Answer 2

4/5 + 1/10 = 8/10 + 1/10 = 9/10
1/6+2/3= 1/6 + 4/6 = 5/6
8/9-1/3= 8/9 - 3/9 = 5/9
1 i 3/10 - 1/5 = 13/10 - 2/10 = 11/10 = 1 i 1/10
2/3+1/5= 10/15 + 3/15= 13/15
4/7+1/2= 8/14+7/14= 15/14= 1 i 1/14
2 i 2/5 + 3 i 1/2 = 2 i 4/10 + 3 i 5/10 = 5 i 9/10
4 i 3/7 + 2 i 2/3 = 4 i 9/21 + 2 i 14/21 = 6 i 23/21 = 7 i 2/21
4/5 - 2/3 = 12/15 - 10/15 = 2/15
5/7 - 1/4 = 20/28 - 7/28 = 13/28
2 i 3/8 - 1 i 1/6 = 2 i 9/24 - 1 4/24 = 1 i 5/24
4 i 1/2 - 2 i 3/5 = 9/2 - 13/5 = 45/10 - 26/10 = 19/10 = 1 i 9/10
4 i 1/4 - 2 i 2/3 = 17/4 - 8/3 = 51/12 - 32/12= 19/12 = 1 i 7/12
5 i 1/9 - 1 i 5/6 = 46/9 - 11/6 = 92/18 - 33/18 = 59/18 = 3 i 5/18
2 i 1/15 - 1/10 = 31/15 - 1/10 = 62/30 - 9/30 = 53/30 = 1 i 23/30
5 i 5/13 - 3 i 1/2 = 70/13 - 7/2 = 140/26 - 91/26 = 49/26 = 1 23/26