Question

Evaluate: 3 /7 + ( −11 /4 ) + 16 /5 − ( −18 /7 )
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Answer 1

This is hard

Explanation:

I'm so sorry I can't do it

Answer 2

`(69)/(20)`

Explanation:

`(3)/(7) -(11)/(4) +(16)/(5) +(18)/(7)`

=
`(3)/(7) +(18)/(7)-(11)/(4) +(16)/(5)`

=
`(21)/(7) -(11)/(4) +(16)/(5)` As both denominators have 7 you can add their numerators

=
`(21)/(7) -(-(9)/(20))` L.C.M

=
`(21)/(7) +(9)/(20)` L.C.M

=
`(69)/(20)`