Answer:3. [tex]\displaystyle 4,12[/tex]2. [tex]\displaystyle \: \: \: \: \: - \\ 0,46[/tex]1. [tex]\displaystyle 0,875[/tex]Step-by-step explanation:3. Every 25 is worth 4, and since 3 by 4 is 12, 3⁄25 gets set to ",12", then attach the whole number [4] to it, giving you 4,12.2. Every 15 is worth 6⅔, and since 7 by 6⅔ is 46⅔, moving the decimal mark twice to the left will give you the above answer, in bar notation, since it is a repeated decimal.1. Every 8 is worth 12½, and since 7 by 12½ is 87½ [87,5], moving the decimal mark twice to the left will give you 0,875.I am joyous to assist you anytime.