Zamień ułamki dziesiętne na ułamki zwykłe i oblicz
wzór: a) 2/3+0,25=2/3+1/4=3/7
b)0,75-3/7= ?
c)2całe1/3:0,28= ?
d)2,8+1cała3/4= ?
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b) 3/4 - 3/7 = 21/28 - 12/28 = 9/28
c)2całe1/3:28/100 = 7/3 : 28/100 = 3/7 * 28/100 = 12/100 = 6/50 = 3/25
d)2całe8/10 + 1cała3/4 = 28/10 + 7/4 = 112/40 + 70/40 = 182/40 = 4całe22/40 = 4całe11/20