Oblicz :
2 ²/₉ + 1 ⁵/₁₂ - ⁷/₈
8 -¹/₂
2 - --------
12 + ¹/₂
POMOCY ;(
2 i 2/9 + 1 i 5/12 - 7/8 = 2 i 16/72 + 1 i 30/72 - 63/72 = 3 i 46/72 - 63/72 = 2 i 118/72 - 63/72 = 2 i 55/63
2 - (8 - 1/2) / (12 + 1/2) = 2 - 7,5 : 12,5 = 12 - 75/125 = 12 - 3/5 = 11 i 2/5
2 ²/₉ + 1 ⁵/₁₂ - ⁷/₈=
20/9 + 17/12 - 7/8 =
160/72 + 102/72 - 63/72 =
199/72 = 2 55/72
2 - -------- =
2- [16/2 - 1/2 // 12 1/2 =
2- [15/2 // 25/2] =
2- [15/2 * 2/25]
2- 3/5 = 10/5 - 3/5 = 7/5 = 1 2/5
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2 i 2/9 + 1 i 5/12 - 7/8 = 2 i 16/72 + 1 i 30/72 - 63/72 = 3 i 46/72 - 63/72 = 2 i 118/72 - 63/72 = 2 i 55/63
2 - (8 - 1/2) / (12 + 1/2) = 2 - 7,5 : 12,5 = 12 - 75/125 = 12 - 3/5 = 11 i 2/5
2 ²/₉ + 1 ⁵/₁₂ - ⁷/₈=
20/9 + 17/12 - 7/8 =
160/72 + 102/72 - 63/72 =
199/72 = 2 55/72
8 -¹/₂
2 - -------- =
12 + ¹/₂
2- [16/2 - 1/2 // 12 1/2 =
2- [15/2 // 25/2] =
2- [15/2 * 2/25]
2- 3/5 = 10/5 - 3/5 = 7/5 = 1 2/5