please help me with fractions
Answers
Q1. Since he used 2/3 cup of sugar for the first and 1/4 cup for the second, we need to add them up. In order to do so, we make the denominators the same. (Find the lowest common multiple of 4 and 3 (both denominators). In this case, it's 12.)
2/3 (Multiply 4 on both sides) = 8/12
1/4 (Multiply 3 on both sides) = 3/12
8/12 + 3/12 = 11/12.
Marty used 11/12 cup of sugar.
Q2. Pam walks 7/8 of a mile where Paul walks 1/2 of a mile. In this question, we need to find the difference between both distances. So, we do 7/8 - 1/2.
Like Question 1, we have to make the denominators the same (lowest common multiple of 8 and 2, which is 16.)
7/8 (Multiply 2 on both sides) = 14/16
1/2 (Multiply 8 on both sides) = 8/16
14/16 - 8/16 = 6/16
6/16 (Divide 2 on both sides to simplify) = 3/8.
Pam walked 3/8 of a mile further than Paul.
1. total amt. of sugar is used is = 2/3 cup of sugar+1/4 cup of sugar
lcm of 3 nd 4 is 12
2/3=8/12 and 1/4=3/12
hence adding 8/12+3/12 =11/12
2.)extra distance covered by pam is
7/8-1/2
lcm of 8 and 2 is 8
hence 7/8=7/8 nd 1/2=4/8
subtracting we get 3/8