Question

________ + -7/8 = 4/9

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Answer 1

➤ Answer :-

${\sf \longrightarrow (x) \tt + \dfrac{( - 7)}{8} = \dfrac{4}{9}}$

To find the value of 'x' in the given sum, we should subtract the answer and the second value..........

${\sf \longrightarrow (x) = \tt \dfrac{4}{9} - \dfrac{( - 7)}{8}}$

Convert them into like fractions by taking the LCM of the denominators i.e, 9 and 8.

LCM of 9 and 8 is 72.

${\tt \longrightarrow \dfrac{4 \times 8}{9 \times 8} - \dfrac{( - 7) \times 9}{8 \times 9}}$

${\tt \longrightarrow \dfrac{32}{72} - \dfrac{( - 63)}{72} = \dfrac{32 - ( - 63)}{72}}$

${\tt \longrightarrow \dfrac{32 + 63}{72} = \dfrac{95}{72} = \boxed{\tt 1 \dfrac{23}{72}}}$

$\Huge\therefore$The other number is ${\tt 1 \dfrac{23}{72}}$

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More to know..................

• While adding the two fractions if the first value is not given, we should subtract the answer and the second value.
• While adding the two fractions if the second value is not given, we should subtract the answer and the first value.
• While subtracting the two fractions if the first value is not given, we should add the answer and the second value.
• While subtracting the two fractions if the second value is not given, we should subtract the first value and the answer.