(1)3又1/3-1又2/3=1又2/3
(2)8.5×0.25×4=8.5
(3)1-7/12=5/12
(4)1又5/12-5/6-1/6=5/12
(5)3+1又8/9=4又8/9
(6)2又5/6-1又1/6=1又2/3
(7)1又1/4+1/3+2又3/4=4又1/3
(8)2.9+3.8+5.6=12.3
(9)3/4+1/4=1
(10)70÷500=0.14
(11)1.35-0.7=0.65
(12)4又1/7-(1/2+1/7)=3又1/2
(13)1you 2/3-1/2=1又1/6
(14)6又1/2-(3+2.5)=1
(15)2/3+1/5=13/15
(16)8×4.4+8×5.6=80
(17)1又7/8+3/8=2又1/4
(18)10.8-4.6-3.4=2.8
(19)5-2又2/7=2又5/7
(20)2又1/2-1/4+1.5=3又3/4
(21)2又1/2+3/4=3又1/4
(22)1-1/2-1/3=1/6