0.71

2) divide top number by the bottom so 7 divided by 10

= 0.7

3) 2 2/10 is kinda more complicated, you times the 1st 2 by the bottom number which is 10 so you have 20, then add the 20 to the top number and you get 22 which as a fraction would look like 22/10 so then 22 divided by 10

= 2.2

with the additional note: i think it might be 71 and 7/10 so like the 2 and 2/10 you do the same procedure. so it should come out to be 717/10 then as a fraction 71.7

i.e.: 7/10 means divide 10 into 7 goes 0

o.??

10 into 70 goes 7

answer 0.7

2+2/10 convert to fraction

22/10 .. use same procedure

10 into 22 = 2 plus 2 over

2.2