Question

Зручним 5/48 + 3/8 + 1/48 =
Зручним (7/15+2/9)-2/15=
Зручним 14/27-(5/27+1/6)=

Answer 1

Ответ:

$1) \: \: \frac{5}{48} + \frac{3}{8} + \frac{1}{48} = \frac{5}{48} + \frac{3 \times 6}{8 \times 6} + \frac{1}{48} = \frac{5 + 18 + 1}{48} = \frac{24}{48} = \frac{1}{2}$

$2) \: \: (\frac{7}{15} + \frac{2}{9} ) - \frac{2}{15} = ( \frac{7 \times 3}{15 \times 3 } + \frac{2 \times 5}{9 \times 5} ) - \frac{2 \times 3}{15 \times 3} = \frac{21 + 10}{45} - \frac{6}{45} = \frac{31}{45} - \frac{6}{45} = \frac{25}{45} = \frac{5}{9}$

$3) \: \: \frac{14}{27} - ( \frac{5}{27} + \frac{1}{6} ) = \frac{14 \times 2}{27 \times 2} - ( \frac{5 \times 2}{27 \times 2} + \frac{1 \times 9}{6 \times 9} ) = \frac{28}{54} - \frac{10 + 9}{54} = \frac{28}{54} - \frac{19}{54} = \frac{8}{54} = \frac{4}{27}$

Answer 2

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