Question

4 7/12 * 1 3/11 + 1 1/15 * 1 11/64 =
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Answer 1

(4*12+7)/12*(1*11+3)/11+(1*15+1)/15*(1*64+11)/64=(48+7)/12*14/11+ 16/15*75/64=55/6*7/11+4/1*3/16=5/6*7/1+1/1*3/4=35/6+3/4=70/12+9/12=(70+9)/12=79/12=