document.write( "Question 1003612: 1. A cookie recipe calls for 1 7/8 of flour and 1 1/4 of sugar. A girl has plenty of flour but only 2 1/8 of sugar. How much flour should she use with the 2 1/8 cups for sugar to keep the indegredients in proportion? \n" ); document.write( "
Algebra.Com's Answer #620293 by addingup(3677)![]() ![]() You can put this solution on YOUR website! I'm not sure I know what you need. She has more sugar (2 1/8 cups) than is needed for the recipe (1 14 cups). Are you saying she wants to use all the sugar she has? If that's the case: \n" ); document.write( "--------------------------- \n" ); document.write( "1 7/8:1 1/4 is the ratio. \n" ); document.write( "15/8:5/4 \n" ); document.write( "= 15/8:10/8 A ratio is the same as a division: \n" ); document.write( "(15/8)/(10/8) To divide you flip the second fraction and multiply: \n" ); document.write( "= 15*8/8*10 \n" ); document.write( "= 120/80 Divide by 10: \n" ); document.write( "12/8 Divide both sides by 4: \n" ); document.write( "3/2 Now, 3 is bigger than 2: 3/2= 1 and you have a remainder of 1: \n" ); document.write( "1 1/2. Your ratio is: \n" ); document.write( "1:1 1/2 You need 1 1/2 parts of sugar for every 1 part of flour. \n" ); document.write( " |