Odpowiedź:
4a a = 3/4
4 * 3/4 = 4 * 0,75 = 3
2y y = 1 1/5
2 * 1 1/5 = 2 * 1,2 = 2,4
2a + b a = 1 1/2 i b = 3
2 * 1 1/2 + 3 = 2 * 1,5 + 3 = 6
3a : 4 a = 2 2/5
3 * 2 2/5 : 4 = 3 * 2,4 : 3 = 7,2 : 3 = 2,4
m - 1 1/2 m = 4 1/6
4 1/6 - 1 1/2 = 24/6 - 3/2 = 24/6 - 9/6 = 15/6 = 2 3/6 = 2 1/2
3b + 2 5/6 = 3 * 1 1/9 + 2 5/6 = 3 * 10/9 + 2 5/6 = 30/9 + 2 5/6 = 3 3/9 + 2 5/6 = 3 6/18 + 2 15/18 = 5 21/18 = 6 3/18 = 6 1/6
Szczegółowe wyjaśnienie:
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