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 Post subject: How many twelfths (11+)Posted: Thu May 09, 2019 11:05 am

Joined: Tue Oct 09, 2018 12:36 pm
Posts: 61
Afternoon guys

My dd is solving this question and she is confused whether she has to multiply 1/12*1 or not

Q:- by how many twelfths in 1 5/6 less than 2 1/4?

Thank you

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 Post subject: Re: How many twelfths (11+)Posted: Thu May 09, 2019 11:55 am

Joined: Wed Nov 28, 2018 11:51 pm
Posts: 33
I would just convert the fractions to twelfths, i.e.:

1 & 5/6 becomes 1 & 10/12
2 & 1/4 becomes 2 & 3/12

then it's easy to work out the difference in twelfths between the two numbers.

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 Post subject: Re: How many twelfths (11+)Posted: Thu May 09, 2019 12:06 pm

Joined: Tue Oct 09, 2018 12:36 pm
Posts: 61
Hi

she was just confused with the whole numbers ( 1 & 2 )

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 Post subject: Re: How many twelfths (11+)Posted: Thu May 09, 2019 2:48 pm

Joined: Fri Oct 16, 2015 9:17 am
Posts: 668
Hi, convert the whole numbers into 12ths as well. So,

1 & 5/6 becomes 1 and 10/12 and then add it to 12/12 to become 22/12
2 & 1/4 becomes 2 and 3/12 and then add it to 24/12 to become 27/12

Then you can subtract 27/12 from 22/12 and 2 & 1/4 is 5/12 larger than 1 & 5/6

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 Post subject: Re: How many twelfths (11+)Posted: Thu May 09, 2019 2:51 pm

Joined: Thu Dec 06, 2018 9:46 pm
Posts: 13
My daughter finds these questions easier when she puts them into improper fractions.

1 & 5/6 = 22/12
2 & 1/4 = 27/12

its much easier to see the difference.

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 Post subject: Re: How many twelfths (11+)Posted: Thu May 09, 2019 2:57 pm

Joined: Tue Oct 09, 2018 12:36 pm
Posts: 61
yes putting into improper fractions makes it much easier.

Thanks to all of you who replied
best of luck to everyone with pre test

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