Find the perimeter of a triangle with side lengths 3 1/3 in , 4 1/6 in, 5 1/2 in

Question

Find the perimeter of a triangle with side lengths 3 1/3 in , 4 1/6 in, 5 1/2 in

Answer 1

Your formula for a perimeter of a triangle is p=a+b+c

for this equation you need to find a denominator that is in common with all three fractions (Hint: It is always a multiple of the smallest denominator)

so here, they can all be multiplied to have a 6 in the denominator position. To get the top number you multiply it by the same number that it takes to get the former denominator to a 6. EX: 1*2/3*2=2/6

Try it yourself before looking down

3 2/6 + 4 1/6 + 5 3/6

Now you can simply add to solve.

3 2/6 + 4 1/6 = 7 3/6 + 5 3/6 = 12 6/6 or 13