Question

va roggg repede!Am nevie la lectii​

Answer 1

a) 2/6+20/30= 1/3+2/3=3/3=1

b) 99/100*10/11+17/40*4/17 = 9/10+1/10= 10/10 =1

Answer 2

Răspuns:

1/2·2/3 se simplifica pe diagonala 2 =1/3

4/5·5/6 se simplifica 5 cu 5 si 4si 6 cu 2=2/3

1/3+2/3=3/3=1

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99/100:11/10=99/100·10/11 simplificam 10 si 100 cu 10 si 99 si 11 cu 11=9/10

17/40:17/4=17/40·4/17 simplificam pe diagonala 17 cu 17 si 4 si 40 cu 4=1/10

9/10+1/10=10/10=1