Peter measured the width of one cardboard strip ad 2 3/4 ft. A second cardboard strip measured 3 2/3 ft in wodth. Estimate the combined wodth of the cardboard.
combined is 2 3/4 + 3 2/3
a crude estimate, rounding up each width, is 3+4 = 7
or, you could estimate that 3/4 is about as much as 2/3, so the estimate could be
2 2/3 + 3 2/3 = 5 4/3 = 6 1/3
2 3/4 + 3 3/4 = 5 6/4 = 6 1/2
To estimate the combined width of the cardboard strips, you need to add their widths together.
Given that the first cardboard strip measures 2 3/4 ft, you can convert the mixed number into an improper fraction:
2 3/4 = (2 * 4 + 3) / 4 = 11 / 4 ft
The second cardboard strip measures 3 2/3 ft, so you can convert it into an improper fraction as well:
3 2/3 = (3 * 3 + 2) / 3 = 11 / 3 ft
Now, to find the total width, add the two fractions together:
11/4 + 11/3 = (11 * 3 + 11 * 4) / (4 * 3) = 33/12 + 44/12 = 77/12
To simplify the fraction, divide the numerator and denominator by their greatest common divisor:
77/12 = (7 * 11) / (6 * 2) = 7.25 ft
Therefore, the estimated combined width of the cardboard strips is 7.25 feet.