Question

Adiceti la un numitor comun irmatoarele perechi de fractii : d) 32/28 15/21 15/50 9/30 21/18 20/24 5/20 18/24 20/32 15/40​

Answer 1

1) 32/18 = 16/9 simplificat prin 2

15/21 = 5/7  simplificat prin 3

amplifici 16/9 cu 7 si 5/7 cu 9

112/63 ; 45/63

2) 15/50 = 3/10

9/30 = 3/10

3/10 ; 3/10

3) 21/18 = 7/6 simplificat prin 3

20/24 = 5/6 simplificat prin 4

7/6 ; 5/6

4) 5/20 = 1/4 simplificat prin 5

18/24 = 3/4 simplificat prin 6

1/4 ; 3/4

5) 20/32 = 5/8 simplificat prin 4

15/40 = 3/8 simplificat prin 5

5/8 ; 3/8