What's wrong with my workings? Adding fractions question. Please could someone explain what is wrong with my workings? (1/9+1/2)+(1/3−1/2)=? My workings are: (18(1/9+1/2))+(6(1/3−1/2))=(2+6)+(2−3)=8−1=7

divamannyxv

divamannyxv

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2022-08-22

What's wrong with my workings? Adding fractions question.
Please could someone explain what is wrong with my workings?
( 1 9 + 1 2 ) + ( 1 3 1 2 ) = ?
My workings are:
( 18 ( 1 9 + 1 2 ) ) + ( 6 ( 1 3 1 2 ) ) = ( 2 + 6 ) + ( 2 3 ) = 8 1 = 7
WHERE DID I GO WRONG ?

Answer & Explanation

Jacey Bowers

Jacey Bowers

Beginner2022-08-23Added 7 answers

If you multiply some part by any number you also must divide by that number!
So you get:
( 18 ( 1 9 + 1 2 ) ) 18 + ( 6 ( 1 3 1 2 ) ) 6 = ( 2 + 9 ) 18 + ( 2 3 ) 6 = 11 / 18 1 / 6 = 11 3 18 = 4 9
Also you made a miscalculation: 18 ( 1 / 9 + 1 / 2 ) = 2 + 9 and not 2 + 6
dejanimaab

dejanimaab

Beginner2022-08-24Added 1 answers

we get
1 9 + 1 2 = 2 + 9 18 =
and
1 3 1 2 = 2 3 6 =
or
1 9 + 1 3 = 1 + 3 9 = 4 9

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