Jack needs about1 1/2 yards of string he has three pieces of string that are different lengths. Without finding the exact amount which two pieces should he choose to get closest to 1 1/2 yards of string?

Incomplete question. However, I provided some suggestions.

Explanation:

Since in this case, we are told that Jack needs about yards but has three strings of varying length.

He can simply compare both strings to see which among the three fits the desired lenght.

7 ft 6 in means 7 1/2, because 6 in is 1/2 of a foot. 7 ft 8 in means 7 2/3 because 8 in is 2/3 of a foot. 23/3 = 7 2/3. 15/2 = 7 1/2.

23/3   *   15/2   = 57 1/2

step-by-step explanation:

example 2 – simplify: step 1: completely factor both the numerators and denominators of all fractions. step 2: change the division sign to a multiplication sign and flip (or reciprocate) the fraction after the division sign; essential you need to multiply by the reciprocal. step 3 : cancel or reduce the fractions.