Answer: The length of Ricki's route to school is
Step-by-step explanation:
If Ricki walks 7/10 mile initially and later walked 1/4 mile, we can calculate the length of Ricki's route to school from her home by simply adding the fractions before us. If we do this properly, we will know exactly how long her route is from her home.
That is:
We will find the lowest common multiple of the two denominators of the fraction (10 and 4) and make the result the common denominator and then combine the fractions:-
The l.c.m is 20. This will now be the common denominator. Now, use 10 (the denominator of 7/10) to divide the l.c.m(20) and multiply the result by the numerator (7); Then put the "+" sign. Repeat this process for the other fraction (1/4) and then add the new numerators. If you do this properly, you would have the fraction below:
Therefore, the length of Ricki's route to school is 19/20 mile