Question

Este o mare urgenta va rog mult de tot ca ma doare si capul ​

Answer 1

0,5 = 5/10= 1/2

a= 1/7+1/7:1/2= 1/7+1/7*2 = 1/7+2/7 = 3/7

b = 1,25:6,25 = 5/4:25/4= 5/4*4/25 = 1/5

1,25= 125/100 = 5/4

6,25 =625/100 =25/4

c= 1/2:4/3+1/4*1/2 = 1/2*3/4+1/8 = 3/8+1/8 = 4/8 = 1/2

d = 7*3/7-5*1/5+2*1/2 = 3-1+1 = 3