Nikki spends 1/4 of an hour driving to work each day and 1/2 an hour driving home. She works every day except Sunday. How long does she spend traveling each week? (Answer in mixed numbers)

Answer 1

1. 1/4 of an hour driving to work
2. 1/2 of an hour driving home
3. works for 6 days

driving per day= drive to work + drive home

= 1/4 + 1/2 find the common denominator which is 4, so express 1/2 as a fraction with denominator 4, which means multiply numerator and denominator by 2/2 which is like multiplying it by 1

= 1/4 + 1/2 · 2/2 multiply numerator by numerator; denominator by denominator

= 1/4 + 2/4 add up numerators and copy the denominator

= 3/4

1. so, in one day she drives 3/4 of an hour
2. now we have to evaluate that for 6 days, which means we have to multiply 3/4 by 6

Driving in 6 days:

3/4 * 6 = multiply 3 by 6, and copy the 4

18/4= if we need to answer in mixed numbers, ask yourself how many times does 4 fit in 18;

1. answer is 4 times;
2. then multiply 4 by 4 which is 16;
3. then substract 18-16=2

that means the answer is 4 2/4, or if you cancel out 2, the answer is 4 1/2