Penny used 2/5 lb of flour to bake a vanilla cake. she used another 3/4 lb of flour to bake a chocolate cake. how much flour did she use altogether?

she use altogether flour is lb

Step-by-step explanation:

given data

flour to bake a vanilla cake = lb

flour to bake a chocolate cake =   lb

to find out

How much flour did she use altogether

solution

we know here flour use to make cake

so total flour is used = add both flour for vanilla and chocolate cake

total flour is used =   +  

total flour is used =  

she use altogether flour is lb