Question

Calcule

a) 5/4 - 10/9

b) 23/16 - 5/6

c) 7/12 + 14/5

d) 4/3 + 6/14​

Answer 1

Bom dia !

5 / 4 - 10 / 9 = 45/36 - 40/36 = 5/36

4 , 9 | 2

2 , 9 | 2

1 , 9 | 3

1 , 3 | 3

1 , 1 | 2 × 2 × 3 × 3 = 36

____________________

23/16 - 5/6 = 69/48 - 40/48 = 29/48

16 , 6 | 2

8 , 3 | 2

4 , 3 | 2

2 , 3 | 2

1 , 3 | 3

1 , 1 | 2 × 2 × 2 × 2 × 3 = 48

____________________

7/12 + 14/5 = 35/60 + 280/60 = 315/60 = 63/12

12 , 5 | 2

6 , 5 | 2

3 , 5 | 3

1 , 5 | 5

1 , 1 | 2 × 2 × 3 × 5 = 60

____________________

4/3 + 6/14 = 56/42 + 18/42 = 74/42 = 37/21

3 , 14 | 2

3 , 7 | 3

1 , 7 | 7

1 , 1 | 2 × 3 × 7 = 42

Um grande abraço !