Question

Your friend finds the sum. Is your friend correct ? Explain your reasoning. 3/10+(-1/10)=4/10=2/5

Answer 1

No he/she isn't

Explanation:

He should've subtracted instead of added both fractions. When you add a positive number to a negative one, it's the same as subtracting.

3/10 + (-1/10)

3/10 - 1/10

2/10

1/5

Best of Luck!