Mają być wszystkie działania osobno i obliczone dobrze:
1,6÷0,4-2,5·⅓=
1,6:0,4-2,5*1/3=4-25/10*1/3=4-25/30=4-5/6=3 i 1/6
1,6 : 0,4 - 2,5 * 1/3 = 4 - 25/10 * 1/3 = 4 -25/30= 3 i 5/30 = 3 i 1/6
1,6 : 0,4 = 4
2,5 *1/3 = 2i5/10 *1/3 = 25/10 *1/3 = 25/30
4 - 25/30 = 3i 30/30 - 25/30 = 3 i 5/30 = 3 i 1/6
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1,6:0,4-2,5*1/3=4-25/10*1/3=4-25/30=4-5/6=3 i 1/6
1,6 : 0,4 - 2,5 * 1/3 = 4 - 25/10 * 1/3 = 4 -25/30= 3 i 5/30 = 3 i 1/6
1,6 : 0,4 = 4
2,5 *1/3 = 2i5/10 *1/3 = 25/10 *1/3 = 25/30
4 - 25/30 = 3i 30/30 - 25/30 = 3 i 5/30 = 3 i 1/6