315/21 = 15, hence 15 times 21 is 315
21
102,060
18/21 x 15 is 12 6/7
No it equals 15
1
9 times, with a remainder of 15, or 9.714.
8/9 × 15/28 × 21/25 = (8×15×21)/(9×28×25) = 2520/6300 = (2×1260)/(5×1260) = 2/5
14/21 * 15/18 = 2/3 * 5/6 = 5/9
Your answer is: 17.7482393
-111
It is: 2.1/140 times 100 = 1.5%