Today Robbie is carrying his history textbook and his lunch in his backpack. If the history textbook weighs 2 5/6 pounds and his lunch weighs 1 2/3 pounds, how much weight is in Robbie's backpack?

Respuesta :

Weight in Robbie backpack is [tex]\frac{27}{6}[/tex] pounds or 4.5 pounds

Solution:

Given that Today Robbie is carrying his history textbook and his lunch in his backpack.

To find: weight in Robbie's backpack

From given,

Weight of history book = [tex]2\frac{5}{6}[/tex] pounds

Weight of lunch = [tex]1\frac{2}{3}[/tex] pounds

weight in Robbie's backpack = Weight of history book + Weight of lunch

[tex]\rightarrow 2\frac{5}{6} + 1\frac{2}{3}[/tex]

Convert the mixed fractions

[tex]\rightarrow \frac{6 \times 2 + 5}{6} + \frac{3 \times 1 + 2}{3}\\\\\rightarrow \frac{17}{6} + \frac{5}{3}\\\\\rightarrow \frac{17+10}{6}\\\\\rightarrow \frac{27}{6}[/tex]

Thus weight in Robbie backpack is [tex]\frac{27}{6}[/tex] pounds or 4.5 pounds