数学问题要详细点,过程.1-3/8-1/89/10-4/5＋4/251/3＋1/5＋1/2=========5/6+3/8－7/12

Question

数学问题
要详细点,过程.
1-3/8-1/8 9/10-4/5＋4/25 1/3＋1/5＋1/2 = = =
= = =
= = =
5/6+3/8－7/12 11/12-(1/2 + 3/8)
＝ =
＝ =
＝ =

Answer 1

1-3/8-1/8
=1-(3/8+1/8)
=1-4/8
=1/2

9/10-4/5＋4/25
=45/50-40/50+8/50
=13/50
1/3＋1/5＋1/2
=8/15+1/2
=16/30+15/30
=31/30
5/6+3/8－7/12
=20/24+9/24-14/24
=15/24
=5/8
11/12-(1/2 + 3/8)
=11/12-7/8
=22/24-21/24
=1/24