3 i jedna czwarta -2×0,25
pod tym wszystkim znak dzielenia duża kreska
2⅓-2×⅓+3,5×2¼
3 1/4 - 2 x 0,25 = 3,25 - 0,5 = 2,75 - to jest licznik
2 1/3 - 2 x 1/3 + 3,5 x 2 1/4 = 7/3 - 2/3 + 3,5 x 2,25 = 5/3 + 7,875 = 5/3 + 7875/1000 = 5/3 + 315/40 = 5/3 + 63/8 = 40/24 + 189/24 = 229/24 to jest mianownik
2,75 : 229/24 = 275/100 * 24/229 = 11/4 * 24/229 = 66/229
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3 1/4 - 2 x 0,25 = 3,25 - 0,5 = 2,75 - to jest licznik
2 1/3 - 2 x 1/3 + 3,5 x 2 1/4 = 7/3 - 2/3 + 3,5 x 2,25 = 5/3 + 7,875 = 5/3 + 7875/1000 = 5/3 + 315/40 = 5/3 + 63/8 = 40/24 + 189/24 = 229/24 to jest mianownik
2,75 : 229/24 = 275/100 * 24/229 = 11/4 * 24/229 = 66/229