How can you know if this equation is true?
12+38=410=25

Answer: B
Step-by-step explanation:
1/2 + 3/8 = 4/10 = 2/5 is not true because 1/2 is already greater than 4/10 (or 2/5 when simplified). So this equation is not true.
Answer:
Look up "fraction calculator".
Step-by-step explanation:
Put 1/2 + 3/8. It will show the work for that one. Click the "Show the work v" button and it should work.
Then, type in 4/10 and you will see that it is equal to 2/5.
4 divided by 2 = 2
10 divided by 2 = 5
Hope I helped!
I don't know what the answer is, but at least I tried to assist you!