Answer:

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Verified answer

Answer:

3.9kg please follow me

Step-by-step explanation:

[tex]given \: total \: apples = 10kg \\ apples \: given \: to \: sister = \frac{19}{5} kg \\ given \: to \:friends = \frac{23}{10} \\ [/tex]

[tex]total \: apples \: given = \frac{19}{5} + \frac{23}{10} \\ = \frac{38 + 23}{10} = \frac{61}{10} kg (lcm) \\ so \: apple \: left = total \: apples - given \\ apples[/tex]

[tex] = 10kg - \frac{61}{10} kg = \frac{100 - 61}{10} = \frac{39}{10} \\ = 3.9kg[/tex]

[tex](take \: lcm \: of \: denominator \: to \: \\ add \: or \: subtract \:)[/tex]