Mathematics
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    Overview: 1 questions will be solved this time.Among them
           ☆1 fraction calculations

[ 1/1 Fraction calculation ]
    Question type: Fractional addition
    Original question: 2/5+1/2
    Solution:
     
2
5
 +  
1
2
    Divide two fractions with defferent denominators:The denominators of two fractions are 5 and 2 respectively,their least common multiple is 10
    Divide the least common multiple 10 by the denominator 5 of the first addend to get 2
    Multiply the numerator 2 and denominator 5 of the first fraction by 2
    Then divide the least common multiple 10 by the denominator 2 of the second addend to get 5
    Multiply the numerator 1 and denominator 2 of the second fraction by 5
    = 
4
10
 +  
5
10
    Calculation result:
    =
9
10




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