Answer:
He can give 4 friends pieces of a candy bar.
Step-by-step explanation:
Each person has to have exactly 3/4 a candy bar.
If you divide all 3 1/2 candy bars into fourths, you will have 14 pieces.
So then, take out portions of 3 at a time, so take out 3 of these pieces, you have one friend. Take out another 3 pieces you now took 6 out and gave to 2 friends. Take another three and you've taken out 9 pieces for 3 friends. Take one more set of 3 pieces you now have taken out 12 pieces for 4 friends. There are only 2 more pieces left which is not enough for another friend so you have 4 friends that got some chocolate.
Hope this helps!! :)