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(6⅗-3³/₁₄)*5⅚ : (21-¼):2½ =
(6⅗-3³/₁₄)*5⅚ : (21-¼):2½ = (33/5-45/14)*35/6 : 83/4 : 5/2 = (462/70-225/70)*35/6 *4/83 *2/5 = 237/70*35/6 *4/83 *2/5 [skracamy 35 i 70 przez 35 oraz 237 i 6 przez 3] = 79/2 *1/2 *4/83 * 2/5 = 79/4 * 4/83 * 2/5 [ skracamy czwórki] = 79/83 * 2/5 = 158/415
(6⅗-3³/₁₄)*5⅚ : (21-¼):2½ =(33/5-45/14)*35/6:83/4:5/2=
(462/70-135/70)*35/6*4/83*2/5=327/70*35/6*4/83*2/5=1308/2490=0,53
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(6⅗-3³/₁₄)*5⅚ : (21-¼):2½ = (33/5-45/14)*35/6 : 83/4 : 5/2 = (462/70-225/70)*35/6 *4/83 *2/5 = 237/70*35/6 *4/83 *2/5 [skracamy 35 i 70 przez 35 oraz 237 i 6 przez 3] = 79/2 *1/2 *4/83 * 2/5 = 79/4 * 4/83 * 2/5 [ skracamy czwórki] = 79/83 * 2/5 = 158/415
(6⅗-3³/₁₄)*5⅚ : (21-¼):2½ =(33/5-45/14)*35/6:83/4:5/2=
(462/70-135/70)*35/6*4/83*2/5=327/70*35/6*4/83*2/5=1308/2490=0,53