You could use a calculator or carry out long division. But far quicker than either is:
4950 = 5000 - 50 = 50*100 - 50
So
4950 = [50*100 - 50]/25 = 50*100/25 - 50/25 = (50/25)*100 - 50/25 = 2*100 - 2 = 200 - 2 = 198
That looks quite long but that is because each step is given. You should be able to skip many of the steps.
2475
0.48
25
The answer is 112. To calculate: 25/100*448 (25 divided by 100 multiplied by 448)
25% is a quarter, so 160% divided by 4 = 40%
25
3600/4950 simplified is 8/11.
3600/4950 = 8/11
The LCM is 4950.
0.025
25
Greatest Common Divisor (GCF) for 3600 4950 is 450.