63/28 reduces to 9/4
1/4 = 0.25
if 9/4 = 9(1/4) then 9/4 = 9(0.25)
63/28 = 9/4 = 2.25
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28/63 = 4/9 so percentage is 44.44...%
Try it. Divide 63 by 7, for example with a calculator - if you get only zeroes after the decimal point, then it is.
63 percent - without using a calculator !
To find the percentage of one number in relation to another number then divide the relative number (in this case 28) by the base number (in this case 63) and multiply the result by 100.100 x 28/63 = 44.44% (2dp)
63 dollars - without using a calculator !