Question

efetue e simplifique se for possível :

a) 3/7 + 21/7 =

b) 23/8 + 9/8 =

c) 10/5 - 17/5 =

d) 8/5 - 20/3 + 7/3 =

preciso dos cálculos tbm >333​​

Answer 1

Resposta:

a)24/7

b)32/8

c)-7/5

d)-41/15

Explicação:

a)3/7+21/7 = 3+21/7 = 24/7

b)23/8+9/8 = 23+9/8 = 32/8

c)10/5-17/5 = 10-17/5 = -7/5

d)8/5-20/3+7/3 = 24-100+35/15 = -76+35/15 = -41/15

mmc de 5 e 3 = 15