(12,7³ - 5,3³)/(5·0,96+2,6)=
= (12,7-5,3)(12,7² + 12,7·5,3 + 5,3²)/(4,8 + 2,6)=
= 5,4·(161,29 + 67,31 + 28,09)/7,4 =
= 5,4 · 256,69 :7,4 =
= 1386,126: 7,4 = 187 2326/7400 =
= 187 1163/3700
(12,7³ - 5,3³)/(5·0,96+2,6)=
= (12,7-5,3)(12,7² + 12,7·5,3 + 5,3²)/(4,8 + 2,6)=
= 5,4·(161,29 + 67,31 + 28,09)/7,4 =
= 5,4 · 256,69 :7,4 =
= 1386,126: 7,4 = 187 2326/7400 =
= 187 1163/3700