Question

What's 1/2 + 1/5= ?

Answer 1

To find your answer you need the same denominators. Find the least common denominator for 2 and 5. The least common denominator is 10. For 1/2 you need to multiply 2x5 to get 10. Whatever you do to the denominator you have to do the same to the numerator. For 1/2 you have to multiply 1x5 which is 5, so your numerator is 5 and you have to multiply 2x5 which is 10, so your denominator is 10.Your fraction is 5/10. For 1/5 multiply 1x2 so your numerator is 2. Then, multiply 5x2 which is 10. Your fraction is 2/10. Add 5/10+2/10=7/10.

Hope that helped:D

Answer 2

Solutions

1/2 + 1/5

The first step is to make the denominators same. To make the denominator same we have to find the greatest common number.

The greatest common number for 2 and 5 is 10

2 x 5 = 10
5 x 2 = 10

Since we multiply 2 by 5 and 5 by 2 we have to do the same multiplication to the numerator.

1 x 5 = 5
1 x 2 = 2

Our new fraction is 5/10 + 2/10

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Calculations

5/10 + 2/10

1) Add the numerators
5 + 2 = 7

2) Simplify
5/10 + 2/10 = 7/10
1/2 + 1/5 = 7/10