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FromTheMoon [43]
3 years ago
8

A dump truck brought 1⁄3 of a ton of rock on the first trip, 5⁄6 of a ton on the second trip, and 5⁄12 of a ton on the third tri

p. What was the total weight of the rock?
Mathematics
2 answers:
ludmilkaskok [199]3 years ago
8 0
First convert the numbers to get the same denominator
1/3=4/12
5/6=10/12
5/12
Then add them all together
4/12+10/12+5/12= 19/12
Then reduce
1 7/12
Your answer is 1 ton and 7/12 of a ton
leonid [27]3 years ago
4 0

Answer:

Weight = 1 and \frac{7}{12} Ton

Step-by-step explanation:

The total weight of the rock is calculated by adding the three fractions.

Weight = \frac{1}{3}+\frac{5}{6}+\frac{5}{12}

As they are different denominators, we look for a common denominator that is the Least Common Multiple (LCM).

Then, for each term, the LCM is divided by the denominator of the original fraction and multiplied by the numerator.

Weight = \frac{1}{3}+\frac{5}{6}+\frac{5}{12}

Weight = \frac{(12/3*1) + (12/6*5) + (12/12*5)}{12}

Weight = \frac{4+10+5}{12}

Weight = \frac{19}{12}=1.5833 Ton

Or

Weight = \frac{19}{12}

Weight = \frac{12+7}{12}

Weight = \frac{12}{12}+\frac{7}{12}

Weight = 1+\frac{7}{12}

Weight = 1 and \frac{7}{12} Ton

Hope this helps!

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