0.75-12分之5+1又6分之5

更新时间2019-01-13 15:57:01

0.75-5/12+(1+5/6)

=3/4-5/12+1+5/6

=1+(3/4+5/6-5/12)

=1+(9/12+10/12-5/12)

=1+7/6

=2+1/6

=2又6分之1

原式可化为：3/4-5/12+11/6=9/12-5/12+22/12=4/12+22/12=26/12=13/6。

本题：0.75-5/12+1又5/6

=3/4-5/12+11/6

=9/12-5/12+22/12

=26/12

=2又1/6

0.75-5/12+(1+5/6)

=9/12-5/12+(1+5/6)

=2/6+(1+5/6)

=(2+1/6)

0.75-12分之5+1又6分之5

=3/4-5/12+11/6

=9/12-5/12+22/12

=26/12=13/6

3/4-5/12+11/6=9/12-5/12+22/12=26/12=13/6，结果是2又6分之1。

0.75就是9/12 减去5/12加上 1又5/6 就是22/12 等于26/12即13/6又是2又1/6