First you need to figure out the lowest common denominator for both 8/12 and 4/8. 24 would be that least common denominator so once you change the fractions to 16/24 - 12/24 you would get 4/24 which can then be reduced to 1/6.
Three and seven eights
187
2
nine minus four and three elevenths is four and eight elevenths
Sixteen.
Three and seven eights
187
1 and 3/8
One and seven eighths. :D
20
Is four eight closer to 0 or 1
Six plus four divided by eight times nine minus four is equal to 6.5
2
nine minus four and three elevenths is four and eight elevenths
-11
-2
Sixteen.