Simplify: (7/8-1/10)-(5/30-8/9)
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( 7 / 8 - 1 / 10 ) - ( 5 / 30 - 8 / 9 )
( 35 / 40 - 4 / 40 ) ( 5 / 30 - 8 / 9 )
35 - 4 / 40 ( 5 / 30 - 8 / 9 )
31 / 40 ( 5 / 30 - 8 / 9 )
31 / 40 ( 1 / 6 - 8 / 9 )
31 / 40 ( 3 / 18 - 16 / 18 )
31 / 40 × ( 3 - 16 / 18 )
31 / 40 ( - 13 / 18 )
31 ( - 13 ) / 40 × 18
- 403 / 720
- 403/720
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Answer:
559/360
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do it like the picture above... it is very easy question.....
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