Question

simplify 4/-8 +-3 1/2​

Answer 1

Step-by-step explanation:

=4/-8-31/2

=-4/8-31/2

=-128/8

=-64

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Answer 2

➤ Answer :-

${\tt\longrightarrow \dfrac{4}{( - 8)} + \bigg(- 3 \dfrac{1}{2} \bigg)}$

Convert the mixed fraction into improper fraction, so that the calculation becomes easier..............

${\tt\longrightarrow \dfrac{4}{( - 8)} + \dfrac{( - 7)}{2}}$

Convert them to like fractions by taking the LCM of the denominators i.e, (-8) and 2.

LCM of (-8) and 2 is 8.

${ \tt \longrightarrow \dfrac{4 \times ( - 1)}{( - 8) \times ( - 1)} + \dfrac{( - 7) \times 4}{2 \times 4} }$

${ \tt \longrightarrow \dfrac{( - 4)}{8} + \dfrac{( - 28)}{8} = \dfrac{( - 4) + ( - 28)}{8} }$

${ \tt \longrightarrow \dfrac{( - 4) - 28}{8} = \cancel \dfrac{( - 32)}{8} = \boxed{ \tt - 4}}$

$\Huge\therefore$The answer for the given sum is -4.

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

• While adding or subtracting the fractions, if they are having different denominators i.e, if they are unlike fractions, we should convert them into like fractions by taking the LCM of the denominators.
• While adding or subtracting the fractions, if they are having the same denominators i.e, if they are like fractions, we can add or subtract them by numerators.