2/5+3/7
1/5+1/6
6.2 squared divided by 8.64
1/5+3/8
2/3+1/5
1,567.911 $ - 141.806 $
simplify 8a+5b+6a-2b
15/45=3/x
10/10*100
find the fourth term coefficient of (2-3x)^7
