Oblicz liczbe ktorej 3/5 jest równe
(3/4-1/5)*3/8
------------------ - 3/10
(1 i 1/4 +2/5):4 i2/5
* to jest mnożenie
--------- kreska do dzielenia
- odciąć
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( 15/20 - 4/20 ) * 3/8 = 11/20 * 3/8 = 33/160
( 1 i 5/20 + 8/10 ) : 4 i2/5 = 1 i 13/20 : 4 i 2/5 = 33/20 * 5/22 = 3/8
33/160 : 3/8 = 33/160 * 8/3 = 11/20
11/20 - 3/10 = 11/20 - 6/20 = 5/20 = 1/4