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Answer»

24/63Step-by-step explanation:first change denominator to equalls so find 7,9 LCM is 63 now7×9 is 63 so -2×9 is -18 -18/639×7 is 63 so 6×7 is 42 so 42/6342-(-18) so plus MINUS is minus so minus both numbers and give sign of greater NUMBER so 2424/63



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