计算如下:
1/3+3/4-5/12
=4/12+9/12-5/12
=(4+9-5)/12
=8/12
=2/3
1/3+3/4-5/12
=4/12+9/12-5/12
=8/12
=2/3(这一步约分为最简分数)
1/3+3/4-5/12
=4/12+(9/12-5/12)。
=4/12+4/12
=8/12
=2/3
1/3+3/4-5/12
=4/12+9/12-5/12
=13/12-5/12
=8/12
=2/3
1/3+3/4-5/12
=4/12+9/12-5/12
=8/12
=2/3
aqui te amo。