oblicz
a)5 1/2 + 1 1/3 - 2 2/5=
b)8 - 4 1/2 : 3 2/5=
c)4 3/4 * 1/23 + 4/8 : 3=
a) 5 1/2 + 1 1/3 - 2 2/5 = 5 15/30 + 1 10/30 - 2 12/30 = 6 25/30 - 2 12/30= 4 13/30
b) 8 - 4 1/2 : 3 2/5 = 8 - 9/2 : 17/5 = 8 - 9/2 * 5/17 = 8 - 45/34 = 8 - 11/34 = 7 23/34
c) 4 3/4 * 1/23 = 4/8 : 3 = 19/4 * 1/23 + 1/2 * 1/3 = 19/92 + 1/6 = 114/552 + 92/552 = 206/552 = 103/276
jest na 98,5% dobrze ;)
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a) 5 1/2 + 1 1/3 - 2 2/5 = 5 15/30 + 1 10/30 - 2 12/30 = 6 25/30 - 2 12/30= 4 13/30
b) 8 - 4 1/2 : 3 2/5 = 8 - 9/2 : 17/5 = 8 - 9/2 * 5/17 = 8 - 45/34 = 8 - 11/34 = 7 23/34
c) 4 3/4 * 1/23 = 4/8 : 3 = 19/4 * 1/23 + 1/2 * 1/3 = 19/92 + 1/6 = 114/552 + 92/552 = 206/552 = 103/276
jest na 98,5% dobrze ;)