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Paolo helped in the community garden for 
2(3)/(4) hours this week. That was 
1(5)/(6) equal-length shifts, because Paolo stopped early one day when it started to rain.
How long is a single shift? hours

Paolo helped in the community garden for 234 2 \frac{3}{4} hours this week. That was 156 1 \frac{5}{6} equal-length shifts, because Paolo stopped early one day when it started to rain.\newlineHow long is a single shift? \newlinehours

Full solution

Q. Paolo helped in the community garden for 234 2 \frac{3}{4} hours this week. That was 156 1 \frac{5}{6} equal-length shifts, because Paolo stopped early one day when it started to rain.\newlineHow long is a single shift? \newlinehours
  1. Convert to Improper Fractions: Convert the mixed numbers to improper fractions to make the calculations easier.\newline2(34)2\left(\frac{3}{4}\right) hours can be converted to an improper fraction by multiplying the whole number by the denominator of the fraction, adding the numerator, and then placing the result over the original denominator.\newline2(34)=(2×4+3)/4=(8+3)/4=1142\left(\frac{3}{4}\right) = \left(2 \times 4 + 3\right)/4 = \left(8 + 3\right)/4 = \frac{11}{4} hours.\newline1(56)1\left(\frac{5}{6}\right) shifts can be converted in the same way.\newline1(56)=(1×6+5)/6=(6+5)/6=1161\left(\frac{5}{6}\right) = \left(1 \times 6 + 5\right)/6 = \left(6 + 5\right)/6 = \frac{11}{6} shifts.
  2. Calculate Total Time Worked: To find the length of a single shift, divide the total hours worked by the number of shifts.\newlineWe have 114\frac{11}{4} hours for the total time worked and 116\frac{11}{6} shifts.\newline(114)÷(116)=(114)×(611)=11×64×11.(\frac{11}{4}) \div (\frac{11}{6}) = (\frac{11}{4}) \times (\frac{6}{11}) = \frac{11 \times 6}{4 \times 11}.
  3. Simplify Expression: Simplify the expression by canceling out the common factors.\newlineThe number 1111 in the numerator and denominator cancels out, as does one factor of 22 in the 66 and 44.\newlineThis leaves us with 64\frac{6}{4} after canceling out 1111, and then we simplify 64\frac{6}{4} by dividing both the numerator and the denominator by 22.\newline64=(6/2)(4/2)=32.\frac{6}{4} = \frac{(6/2)}{(4/2)} = \frac{3}{2}.
  4. Convert Back to Mixed Number: Convert the improper fraction back to a mixed number if necessary.\newline32\frac{3}{2} hours is the same as 1121\frac{1}{2} hours or 1.51.5 hours.\newlineSo, a single shift is 1121\frac{1}{2} hours long.

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