2/3 x 9/19 = (2 x 9)/(3 x 19) = 18/57 = 6/19.
2 / 3 * 9 / 10, multiply top and bottom = 18 / 30 = 9 / 15 = 3 / 5 (three fifths) or if you divide it out, 0.6 in decimal
One and a 1/3
2/3 x 9/10 = (2x9)/(3x10) = 18/30 = 18÷6/30÷6 = 3/5
-7