Question

1 1/2+2/5 how do I solve

Answer 1

Answer:

1 9/10

Step-by-step 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!

Answer 2

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