What is the sum of a number and 3 / 10, which is equivalent to 45% of 7 / 9

What is the sum of a number and 3 / 10, which is equivalent to 45% of 7 / 9

7 / 9 * 45% - 3 / 10 = 7 / 20-3 / 10 = 1 / 20. Where, / is the comparison sign, * is the multiplication sign and - is the subtraction sign