690. Вычислите: 1) 3/4 + 12 2/5 + 21 17/30 + 19 17/60; 2) 10 37/80 + 2 19/48 + 1 5/32 + 7 1/96; 3) 4 3/8 + 15/16 + 7 17/60 + 15 41/64; 4) 6 47/150 + 1 19/120 + 5 9/40 + 4 91/300; 5) 7 11/100 + 8 7/125 + 5 41/75 + 10 23/150 + 8 9/50.

Question

Вопрос:

Accepted Answer

\(\frac34+12\frac25+21\frac{17}{30}+19\frac{17}{60}=53\frac{11}{60}\).
\(10\frac{37}{80}+2\frac{19}{48}+1\frac5{32}+7\frac1{96}=21\frac{13}{24}\).
\(4\frac38+\frac{15}{16}+7\frac{17}{60}+15\frac{41}{64}=28\frac{131}{960}\).
\(6\frac{47}{150}+1\frac{19}{120}+5\frac9{40}+4\frac{91}{300}=17\frac{19}{50}\).
\(7\frac{11}{100}+8\frac7{125}+5\frac{41}{75}+10\frac{23}{150}+8\frac9{50}=39\frac{277}{1500}\).

Ответ: