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Răspuns :

Răspuns:

Explicație pas cu pas:

3/10 =3/5*2 = 1/2 - 1/5

3/40 = 3/5*8 = 1/5 - 1/8

3/88 = 3/8*11 = 1/8 - 1/11

3/11*14 = 1// - 1/14

3/14*17 = 1/14 - 1/17

3/17*20 = 1/14 - 1/20

3/20*23 = 1/20 - 1/23 = 1/460 gresit in carte !

b = 1/2 - 1/23 = 21/23

a/b = 3/23*23/21 = 1/7