4 1/3 : ( 5/6 + 0,25)
3,6 *(7/12 +1/9)
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4 1/3:(5/6+1/4) = 13/3:(10/12+3/12) = (13/3):(13/12) = 13/3 * 12/13 = 12/3 = 4.
3,6*(21/36+4/36) = 36/10 * 25/36 = 25/10 = 2 5/10 = 2 1/2.
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Answers & Comments
4 1/3:(5/6+1/4) = 13/3:(10/12+3/12) = (13/3):(13/12) = 13/3 * 12/13 = 12/3 = 4.
3,6*(21/36+4/36) = 36/10 * 25/36 = 25/10 = 2 5/10 = 2 1/2.