(3x³ - 7x² + 12) - (3x³ + 6x² + 10x)
(3x³ - 3x³) + (-7x² + 6x²) - 10x + 12
-x² - 10x + 12
56/90
" / " means divide
56 divided by 90 = 0.62 with a line over the 2 because it is repeating
12/18
6/9
2/3
Make sure you simplify fractions
127.17 because 9x9=81 and 81x3.14=254.34 then divide by 2 and it’s equal 127.17
