Question

简算1又5/6+1又11/12+1有19/20加1又29/30加一又是41/12加11516分之5？

怎么算

Answer 1

解:应用通分方法求解，∵带分数要化成假分数∴1(5/6)+1(11/12)+1(19/20)+1(29/30)+1(41/12)+5/11516=11/6+23/12+39/20+29/30+53/12+5/11516=(57580×11)/345480+(28790x23)/345480+(17274×39)/345480+(11516×29)/345480+(41×28790)/345480+(5×69096)/345480=3259264/345480

Answer 2

1又5/6+1又11/12+1又19/20+1又29/30+1又41/42+1又55/56
=2-1/6+2-1/12+2-1/20+2-1/30+2-1/42+2-1/56
=2×6-1/2+1/3-1/3+1/4-1/4+1/5-1/5+1/6-1/6+1/7-1/7+1/8
=12-(1/2-1/8)
=12-3/8
=11又5/8