13.8889
w = 13 add 28 to 180, then subtract 13 from 180 to balance equation. Then 4w + 11 w = 195. Add 4w + 11w =15w, so 15w=180, divide 180 by 15, w = 13 4(13) -28 + 11(13) + 13 = 180
28
0.08
28 ÷ 4 = 7 simply divide 28 by 4 (as there are 4 quarters to a whole)
13.8889
571 divide by 28 = 20.392857142857142
28 is one such number.
62 divide by 28 = 2.2142857142857144
w = 13 add 28 to 180, then subtract 13 from 180 to balance equation. Then 4w + 11 w = 195. Add 4w + 11w =15w, so 15w=180, divide 180 by 15, w = 13 4(13) -28 + 11(13) + 13 = 180
-28
These are the numbers that divide into 28 evenly: 1, 2, 4, 7, 14, 28.
28
51 divide it by 13 = 3.923076923076923
28 ÷ 4 = 736 ÷ 4 = 9
0.08
You reduce it. To reduce it, you find the greatest factor they share, in this case 2, and divide each number by it, to get 13 over 14, or 13/14.