Вправи 201 - 300 » 264

Обчисліть. 1) 3^(\9)/7 + 4^(\7)/9 = 27/63 + 28/63 = 55/63; 2) 8^(\8)/9 – 7^(\9)/8 = 64/72 – 53/72 = 1/72; 3) 13/15 – 2^(\5)/3 = 13/15 – 10/15 = 3/15; 4) 20/21 + 3^(\7)/7 = 20/21 + 21/21 = 41/21; 5) 17^(\2)/18 – 11^(\3)/12 = 34/36 – 33/36 = 1/36; 6) 7^(\3)/16 + 1^(\8)/6 = 21/48 + 8/48 = 29/48; 7) 2^(\4)/9 + 5^(\6)/6 = 8/36 + 30/36 = 38/36 = 11/18; 8) 10^(\2)/21 + 9^(\3)/14 = 20/42 + 27/42 = 47/42; 9) 7^(\5)/9 – 4^(\3)/15 = 35/45 – 12/45 = 23/45; 10) 9^(\2)/14 – 3^(\4)/7 + 15^(\1)/28 = 18/28 – 12/28 + 15/28 = 21/28 = 3/4; 11) 1^(\4)/6 + 1^(\6)/4 – 1^(\3)/8 = 4/24 + 6/24 – 3/24 = 7/24; 12) 13^(\5)/18 – 29^(\2)/45 + 8^(\6)/15 = 45/90 – 58/90 + 48/90 = 35/90 = 7/18.