15/945 = 1/63 = 0.0(158730) repeating at period 6.
Also, the chain rule can be used:
5/945 = 1/189
3/189 = 1/63.
0.0508
35
945
189
45
9+4+5=18 which can be divided by 9 so 945 can be divided by nine.
45
2.9531
118.125
945 ÷ 15 = 63.
15 goes into 945 63 times.
45