3 3/4 cups of flower to make 1 recipe
3 3/4 cups of flower-----------------> 1 recipe
??? n flower ----------------------------> 1/2 recipe
cross multiplication
n = 1/2 x 3 3/4 / 1 = 1/2 x 15 /4 = 15/ 8 cups of flower = 1.875
note 3 3/4 =( 3 x 4) +3 / 4 = 15 /4
