Why do fractions need to have a common denominator before you add or subtract them? best answer i’ll mark as brainliest

If your teacher tells you to do questions 6 through 19 in your math book for homework, how many questions is that

Out of $20$ creepy-crawly creatures in a room, $80\%$ are flies and $20\%$ are spiders. if $s\%$ of the total legs belong to spiders, what is $s$?

Which of these triangle pairs can be mapped to each other using a single translation? cof hn