When you add and subtract be sure that the two fractions have the same denomination, and then add/subtract the numerators. I always do cross multiplication of the two fractions to obtain the same denominators-although there are various ways to do this.
Multiplying fractions is simply straight across.
Dividing fractions:
Keep, change, flip.
Keep the first fraction the same, change the sign to its opposite (ex:division flips to multiplication), and flip the numerator and the denominator of the second fraction. Then, preform the arithmetic from your "new" problem.
60 miles because if you plug it in, it says she uses 2 gallons of gas. You can substitutes D=30(2), which comes out to 60
I think it's 11 bc idk lol
Answer:
91 cents
Step-by-step explanation:
3 quarters+3 nickel+1 penny=91 cents
