Question

efetue os cálculos a seguir escrevendo os números na forma fracionaria​

Answer 1

Resposta:

a) 60/10                              d) 543/20

b) 1071/10                            e) 6496/100

c) 1444/999                         f) 1179/70

Explicação passo-a-passo:

a) 5,4= 54/10

54/10+6/10= 60/10

b) 2,1+3,4=5,5=55/10

m.m.c (10-5)= 10

508/5=1016/10

1016/10+55/10=1071/10

c) 1,555...=1555/999-1/3=1555/999-333/999=1222/999

m.m.c (999-3)= 333

1222/999+2/9=1222/999+222/999=1444/999

m.m.c (999-9)=111

d) 5/1+83/4+7/5=100/20+415/20+28/20=543/20

m.m.c (1-4-5)=20

e) 60,8=608/10-4/10=598/10+516/100=5980/100+516/100=6496/100

m.m.c (10-100)=100

f) 5/14-0,18=5/14-18/10=25/70-126/70=101/70

m.m.c (14-10)=70

101/70-128/7=101/70-1280/70=1179/70

m.m.c (7-70)=70