ΠΠ½ΡΠΎΠ½8 Π»Π΅Ρ Π½Π°Π·Π°Π΄
ΠΠ΅ΡΠ²ΡΠΌΠΈ Π²ΡΠΏΠΎΠ»Π½ΡΡΡΡΡ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π² ΡΠΊΠΎΠ±ΠΊΠ°Ρ , Π΄Π°Π»Π΅Π΅ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π½Π° ΡΠΌΠ½ΠΎΠΆΠ΅Π½ΠΈΠ΅/Π΄Π΅Π»Π΅Π½ΠΈΠ΅, ΠΏΠΎΡΠ»Π΅Π΄Π½ΠΈΠΌΠΈ Π΄Π΅ΠΉΡΡΠ²ΠΈΡ Π½Π° ΡΠ»ΠΎΠΆΠ΅Π½ΠΈΠ΅/Π²ΡΡΠΈΡΠ°Π½ΠΈΠ΅.
12 1/4 - (8 + 4 3/8) * (3 2/9 - 2 5/11) = 2 3/4.
1). 8 + 4 3/8 = 12 3/8;
2). 3 2/9 - 2 5/11 = 29/9 - 27/11 = (29 * 11) / (9 * 11) - (27 * 9) / (11 * 9) = 319/99 - 243/99 = 76/99;
3). 12 3/8 * 76/99 = 99/8 * 76/99 = (99 * 76) / (8 * 99) = 7524/792 = 418/44 = 209/22 = 9 11/22 = 9 1/2;
4). 12 1/4 - 9 1/2 = 49/4 - 19/2 = 49/4 - (19 * 2) / (2 * 2) = 49/4 - 38/4 = (49 - 38) / 4 = 11/4 = 2 3/4.