Question

Сократите дроби 42-7
-------
42*7
15*6
---------
15-6
12*4
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12+4

Answer 1

$frac{42-7}{42*7} = frac{35}{294} = frac{5}{42}$
$frac{15*6}{15-6} = frac{90}{9} =10$
$frac{12*4}{12+4} = frac{48}{16} =3$

Answer 2

спасибо