Question

socorrooo preciso das respostas hoje determine o valor das expressões:
a) 5/6 + 1/2 . 3/4

b) 5- 7/4 . 1/2

c) 2/3 . 1/5 + 2 1/4

d) 2 1/9 + 4/5 . 2

e) 3/5 + 2/9 : 1/6

f) 2/7 . 3/5 - 1/8 : 5/6
obrigada

Answer 1

a)5/6+3/8=
mmc de 6 e 8 =24

20/24+9/24=29/24

b)5-7/8=
5/1-7/8=
40/8-7/8=33/8

c)2/15+9/4=
mmc de 15 e 4=60

8/60+135/60=
143/60

d)19/9+4/5.2/1=
19/9+8/5=

mmc 9 e 5=45
95/45+72/45=167/45


e)3/5+2/9×6/1=
3/5+12/9=
27/45+60/45=87/45

f)6/35-1/8×6/5=
6/35-6/40=

mmc 35 e 40 =280
.
48/280-42/280=
6/280