2/3 yard of fabric = 2 feet of this fabric = which is used to make 1 scarf
1 3/4 yards = ?
1 yard = 3 feet = 36 inches
3/4 of 36
36 /4 = 9
9 * 3 = 27
36 + 27 = 63
63 inches of fabric would mean that she can 2 scarves as 2 scarves would use 48 inches or 4 feet as 1 scarf uses 2 feet. She will also have 15 inches of extra fabric.
All of the other answers share at least one factor they can be divided by (the numerator in all cases). 5/12 however shares no factors and cannot be simplified anymore.
