Comparing mixed numbers

Which of the following expression will give a sum of 7 and 3/10?
A. 3 and 1/5+ 4 and 2/2
B. 3 and 1/10+4 and 2/10
C. 1/10+ 7 and 2/5
D. 2 and 1/10+ 5 and 3/10


x = (Correct answer is: B) Wrong answer

Step-by-step explanation:

v=7103=7+103=107 10+3=1073=7.3  A=351+2/2=521=451=4.2 B=3101+4102=7.3 C=101+752=215=721=7.5 D=2101+5103=7.4  B=v x=B

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