An airline agent checked in 10 and 1/3 kg of baggage for one passenger and another 8 and 5/6 kg of baggage for his travel companion. How many kilograms of luggage did the agent check in all?
Do you know how to first convert it into an improper fraction?
no I don't
Take a look at this image
ok
So we have 10 1/3 we have to multiply 10*3 and add 1 and then the denominator will be 3 what is 10*3 =
that means I have to make it a mixed fraction
we already have a mixed fraction! We need to make it an improper fraction
okay
how do I do that
so you know if you had a pie, if you cut it into thirds you could get one third of the pie?
oh yea
we have 10 pies and 1/3 of a pie another way to write 10 pies in terms of slices would be if we cut each pie into 3 slices, how many slices would 10 pies have?
each pie has 3 slices and we have 10 pies so 10 times 3 =
30
good so 10 is the same thing as 30/3 because we have 30 whole slices and each pie has 3 slice so each pie has 3 slices and no one's eaten anything yet so it would be 3/3 + 3/3 + 3/3 + 3/3 + 3/3 + 3/3 + 3/3 + 3/3 + 3/3 + 3/3 = 30 / 3
still following along?
yes
now we said we had 10 pies AND 1/3 of another pie so if 10 pies is 30 slices and we have one more slice what is 30 + 1
31
and so another way to write 10 1/3 would be as 31/3 make sense?
yes so you make it a mixed since it is a improper fraction or simplify it
we made it into an improper fraction it's improper because the numerator (the top part of the fraction) is bigger than the denominator (the bottom part of the fraction)
oh
so what would you do after is that the answer
now can you similarly do that to 8 and 5/6 so instead of our pie being cut into 3 slices we're going to cut out pie into 6 slices so if we have 8 pies, how many total slices will we have?
basically what is 8 times 6 since each pie has 6 slices and there's 8 pies
48
good! now we said we have 8 5/6 so 8 pies is the same as 48 / 6 but we still have one more pie but this one only has 5 slices out of the 6 slices (5/6) so we need to add it. AND REMEMBER when we add fractions, we do NOT add the bottom part. The bottom part MUST be the same number for us to be able to add the top parts. Got it? So what is 48 + 5 = |dw:1614779117848:dw|
64/6
are you sure? maybe you pressed the wrong number just count on your fingers 48 + 6
54
there you go! so now we have 54/6
Now, let's look at your question again and use these improper fractions we got
okay
An airline agent checked in 10 and 1/3 kg of baggage for one passenger and another 8 and 5/6 kg of baggage for his travel companion. How many kilograms of luggage did the agent check in all? we had to ADD the two fractions \(10 \dfrac{1}{3} + 8 \dfrac{5}{6}\) but we just said that 10 1/3 is the same thing as 31/3 and 8 5/6 is the same thing as 54/6 so now we have \(\dfrac{31}{3} + \dfrac{54}{6} = \)
18 6/6
no no okay so we learned how to convert it into improper fractions but let's take a step back
we have 10 pies and one third of a slice we have 8 pies and 5 out of 6 slices right?
mmmm?
ok
so let's just count the pies which we have that are FULL what is 10 + 8
hold on
sure
you got 10 whole pies and 8 whole pies how many total pies do you have
18
do you mean wholes are pies
how many wholes? or how manypies?
Good now we have to look at what's left we have 1/3 and we have 5/6 |dw:1614780211130:dw|
\(\color{#0cbb34}{\text{Originally Posted by}}\) @jesternmais do you mean wholes are pies \(\color{#0cbb34}{\text{End of Quote}}\) yes, I'm just using pies because maybe you'll understand that better than wholes because pies are circular so it can help you think about the fractions
1/3+5/6=6/6=1/1
or
now now are you sure? doesn't that 1/3 look much bigger than whatever is left in the 5/6 pie
1/3+5/6=7/6=1 1/1
now there you go!!!!
wait
so the answer is 1 1/1
7 / 6 = 1 1/6
oh
the denominator stays the same
at all times
I got thank you
|dw:1614780491369:dw|
Yes! The denominator stays the same when you're adding and subtracting
so what did you get as the final answer? (:
well I add the numerators and then I got 7/5 but left the denominator the same and when I saw it was a improper fraction I changed it to a mixed number and how I did that I divided the denominator into the numerator it went 1 time and the remainder was one which would be the numerator for the mixed number and then the denominator would be the same .
7/6*
wonderful! so we had 18 wholes and then we have 1 whole and 1/6 so how many wholes do we have now?
1 /16
1 1/6*
18 whole pies and then we have 1 whole pie and 1/6 of a pie so 18 + 1 1/6
18 +1 1/6 = 19 1/6
And that's your final answer!!
19 1/6
Good job!
thank you
You're most welcome!
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