128,730 views
11 votes
11 votes
1 1/2+2/5 how do I solve

User Karlee
by
2.7k points

2 Answers

21 votes
21 votes

Answer:

1 9/10

Explanation:

Rewriting our equation with parts separated

1+1/2+2/5

Solving the fraction parts

1/2+2/5=?

Find the LCD of 1/2 and 2/5 and rewrite to solve with the equivalent fractions.

LCD = 10

5/10+4/10=9/10

Combining the whole and fraction parts

1+9/10= 1 9/10

OR

Solution by Formulas

Convert any mixed numbers to fractions.

Then your initial equation becomes:

3/2+2/5

Applying the fractions formula for addition,

(3×5)+(2×2)

2×5

= 15+4

10

= 19/10

Simplifying 19/10, the answer is

1 9/10

Hope this helps!

User Mjaniec
by
3.0k points
23 votes
23 votes
you can change the denominator to 10 which will get you to 55/10 + 4/10. You can add these two together to get 59/10
User Fantom
by
2.4k points