1.
2 2/5 *1 2/3-1 5/6=
4 7/8-1 1/3*1 1/8=
plis to tylko dwa przykłady pomóżcie
a jeszcze tylko to np :2 2/5 to znaczy dwie całe i dwie piąte plis szybko
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2 2/5 * 1 2/3 - 1 5/6 = 12/5 * 5/3 = 4/1* 1/1 = 4 - 1 5/6 =2 1/6
4 7/8 - 1 1/3 * 1 1/8 = 4 7/8 -3/2 = 39/8 - 3/2 =39/8 - 12/8 =27/8 = 3 3/8