Question

Charlotte and Riley walked 6/10 of a mile to school one day, and then after school they walked 3/8 of a mile to the store. From the store back home was another 2/5 of a mile. How far did the girls walk in all?

Answer 1

Answer: The girls walked $1\dfrac38$ miles.

Step-by-step explanation:

Given:  Distance from home to school = $\dfrac{6}{10}$ mile

Distance from school to store = $\dfrac38$ mile

Distance from store to home = $\dfrac25$ miles

Total distance = $\dfrac6{10}+\dfrac38+\dfrac25$

= $\dfrac{6\times4+3\times5+2\times8}{40}$   [L.C.M.(10,8,5)=40]

= $\dfrac{24+15+16}{40}$

= $\dfrac{55}{40}$

= $\dfrac{11}{8}=1\dfrac38$  miles

Hence, The girls walked $1\dfrac38$ miles.