To insert fraction values;
1) Click on "math" found under the alpha option
2) Use right arrow key to move to the tab "FRAC"
3) Select 1st option for fraction
4) Write out Fraction
Hope I helped :)
I don’t understand the question
If you mean
7m-4
M=8, this is the solution
7(8)-4
56-4
=52
But if you mean
7m- - 4
As in - + - = +
Then this is your answer
7(8)+4
56+4
=60
500 + 30% equals 650. 30% of 500 equals 150.
It equals 0.0192727261287227 mathamatics