Question

ułamki klasa 6

1) 2 całe i 1/6 - 1 cała i 1/2 + 1/8

2) 5 całych i 1/14 - 2 całe i 1/4 - 1 cała i 3/7

3) 4 całe i 1/5 : 2 całe i 1/3

4) 1 cała - 1/2 x 1/3

5) 3 całe i 2/7 + 1/7 x 6 całych

6) 3 całe i 1/2 x 2/3 : 7 całych

7) 5 całych i 1/7 x ( 1 cała - 8/9 )

8) 1 cała i 1/9 x 2 i 2/5 + 2 całe

9) 6 całych i 3/5 : 3 całe i 2/3 - 1 cała i 1/2

Answer 1

1) 2 1/6 - 1 1/2 + 1/8 = 2 4/24 - 1 12/24 + 3/24 = 16/24 + 3/24 = 19/24

2) 5 1/14 - 2 1/4 - 1 3/7 = 5 2/28 - 2 7/28 - 1 12/28 = 2 23/28 - 1 12/28 = 1 11/28

3) 4 1/5 : 2 1/3 = 21/5 : 7/3 = 21/5 * 3/7 = 9/5 = 1 4/5

4) 1 - 1/2 * 1/3 = 1 - 1/6 = 5/6

5) 3 2/7 + 1/7 * 6 = 3 2/7 + 1/7 * 6/1 = 3 2/7 + 6/7 = 4 1/7

6)3 1/2 * 2/3 : 7 = 7/2 * 2/3 : 7 = 14/6 : 7 = 14/6 * 1/7 = 2/1 = 2

7) 5 1/7 * 1/9 = 36/7 * 1/9 = 4/7

8) 1 1/9 * 2 2/5 + 2 = 10/9 * 12/5 + 2 = 24/9 + 2 = 2 6/9 + 2 = 4 6/9

9) 6 3/5 : 3 2/3 - 1 1/2 = 33/5 : 11/3 - 1 1/2 = 33/5 * 3/11 - 1 1/2 = 9/5 - 1 1/2 = 1 4/5 - 1 1/2 = 1 8/10 - 1 5/10 = 3/10

 

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Answer 2

1) 2 4/24 - 1 12/24 + 3/24 = 1 28/24 - 1 12/24 + 3/24 = 16/24 + 3/24 = 19/24

2) 5 7/28 - 2 7/28 - 1 12/28 = 3 - 1 12/28 = 2 28/28 - 1 12/28 = 1 16/28 = 1 4/7

3) 21/5 : 7/3 = 21/5 x 3/7 = 9/5 = 1 4/5

4) 1 - 1/2 x 1/3 = 1 - 1/6 = 6/6 - 1/6 = 5/6

5) 3 2/7 + 6/7 = 3 8/7 = 4 1/7

6) 7/2 x 2/3 : 7 = 14/6 x 1/7 = 2/6 = 1/3

7) 5 1/7 x 1/9 = 36/9 x 1/9 = 4/9

8) 10/9 x 12/5 + 2 = 8/3 = 2 8/3 = 4 2/3

9) 33/5 x 3/11 - 1 1/2 = 9/5 - 1 1/2 = 1 4/5 - 1 1/2 = 1 8/10 - 1 5/10 = 3/10