三十道简单分数 口算题出题

1/3+2/3=
（5/6-1/4）*5/6=
3/7*7/6-1/2=
4/9+1/3=
16/15-2/3=
3/4*4/5=
1/2-3/7=
3+9/10+3/2=
3/4-15/8=
1/2+1/4+1/8+1/16=
3/8*2/9+1=
(1/3+5/6)*1/7=
121/100-12/10=
1/3+3/4=
16/7-3/14=
99/26*13/11=
1/2+3/2+4/3=
1+3/8*2/3=
19/9-4/3=
28/11+2=
2/3*6/7=
5/6*2/3-3=
1/8+7/4=
(5/6-1/3)*3=
2/9+3/4=
19*1/8+1/2=
2/5+7/10=
3/4-17/8*2/3=
1/2-3/2+3/4=
99/100+1/10=