oblicz: a) 8+2 2/7*7/10= b) (2 4/5-1 3/10):3 3/4-2/15=
8 + 16/7 * 7/10 = 8 + 8/5 = 8 + 1,6 = 9,6
( 2 4/5 - 1 3/10 ) : 3 3/4 - 2/15 = ( 2 8/10 - 1 3/10 ) : 3 3/4 - 2/15 = 1 5/10 : 3 3/4 - 2/15 = 15/10 : 15/4 - 2/15 = 2/5 - 2/15 = 6/15 - 2/15 = 4/15
:)
a) 8+2 2/7*7/10 = 8 + 16/7 * 7/10 = 8 + 16/10 = 9 6/10
b) (2 4/5-1 3/10):3 3/4-2/15 = (2 8/10 - 1 3/10) : 15/4 - 2/15 = 15/10 * 4/15 - 2/15 = 2/5 - 2/15 = 6/15 - 2/15 = 4/15
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8 + 16/7 * 7/10 = 8 + 8/5 = 8 + 1,6 = 9,6
( 2 4/5 - 1 3/10 ) : 3 3/4 - 2/15 = ( 2 8/10 - 1 3/10 ) : 3 3/4 - 2/15 = 1 5/10 : 3 3/4 - 2/15 = 15/10 : 15/4 - 2/15 = 2/5 - 2/15 = 6/15 - 2/15 = 4/15
:)
a) 8+2 2/7*7/10 = 8 + 16/7 * 7/10 = 8 + 16/10 = 9 6/10
b) (2 4/5-1 3/10):3 3/4-2/15 = (2 8/10 - 1 3/10) : 15/4 - 2/15 = 15/10 * 4/15 - 2/15 = 2/5 - 2/15 = 6/15 - 2/15 = 4/15