Question

Dzielenie ułamków zwykłych :

2/3 + 3/4=

1 i 1/3 - 5/8=

5/6 * 2/15=

1 i 2/3 * 6/25=

2 i 1/7 * 1 i 1/3=

7 i 1/3 : 2 i 2/5=

Answer 1

2/3 + 3/4 = 8/12 + 9/12 = 17/12 = 1 i 5/12

 

4/3 - 5/8 = 32/24 - 15/24 = 17/24

 

5/6 * 2/15 = 1/9

 

5/3 * 6/25 = 2/5

 

15/7 * 4/3 = 20/7 = 2 i 6/7

 

22/3 * 5/12 = 110/36 = 3 i 2/36= 3 i 1/18

Answer 2

2/3 + 3/4 = 8/12 +9/12 = 17/12 = 1 i 5/12

1 i 1/3 - 5/8 = 4/3 - 5/8 = 32/24 - 15/24 = 17/24
5/6 × 2/15 = 1/6

1 i 2/3 × 6/25 =  8/3 × 6/25 = 16/25
2 i 1/7 × 1 i 1/3 = 15/7 × 4/3 = 20/7 = 2 i 6/7
7 i 1/3 ÷ 2 i 2/5 = 22/3 ÷  12/5 = 22/3 × 5/12 =11/6 = 1 i 5/6