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2/7 * 0,3 = 2/7 * 3/10 = 6/70 = 3/35
1 3/4 : 0,1 = 7/4 : 1/10 = 7/4 * 10 = 70/4 = 17 2/4 = 17 1/2
0,6 : 3/4 = 6/10 : 3/4 = 6/10 * 4/3 = 2/5 * 2/1 = 4/5
lepiej ci bedzie obliczyc jak zamienisz sobie na ulamki zwykle.
1/4 * 0,4 = 0,25 * 0,4 = 0,1
2/7 * 0,3 = 2/7 * 3/10 = 6/70 = 3/35
1 3/4 : 0,1 = 1,75 : 0,1 = 17,5
0,6 : 3/4 = 0,6 : 0,75 = 0.8