Question

calcule a) 6/5+7\5= b) 8\7-3\7= c) 3\2+2\7= d) 2\3+3\4 e) 1\3+7\9-5\6= ​

Answer 1

Resposta:

Explicação passo-a-passo:

a) 13/5

b) 5/7

c) mmc 2 e 7 = 14

3/2 + 2/7 =

3.7 + 2.2/14 = 21+4/7 =25/7

d) mmc 3 e 4= 12

2/3+3/4=

4.2+3.3/12=

8+9/12=17/12

e) mmc 3, 9 e 6 = 18

1/3+7/9-5/6=

6.1+2.9-3.5/18=

6+18+15/18= 39/18= 13/6

ps. essas multiplicações são o resultado do mmc dividido pelo denominador

Answer 2

Olá!!!!

a)

6/5 + 7/5

6 + 7/5

13/5

b)

8/7 - 3/7

8 - 3/7

5/7

c)

3/2 + 2/7⇒o mmc (2, 7) = 14

21 + 4/14

25/14

d)

2/3 + 3/4⇒mmc (3, 4) = 12

8 + 9/12

17/12

e)

1/3 + 7/9 - 5/6⇒mmc (3, 9, 6) = 18

6 + 14 - 15/18

20 - 15/18

5/18

Espero ter ajudado.