the fractions have different denominators
No
Before you can do that, you need to write each mixed number as an improper fraction, and then write both fractions with a common denominator. The only other choice is to write both mixed numbers as decimals, and then add them.
Find the least common multiple. For example, if the denominators were 6 and 7, the least common multiple would be 42.
convert both to numbers with lowest common denominator then add
the fractions have different denominators
No
Before you can do that, you need to write each mixed number as an improper fraction, and then write both fractions with a common denominator. The only other choice is to write both mixed numbers as decimals, and then add them.
It can't be one. Mixed numbers are greater than one.
2 and two fifths
the denominators
Convert them to improper fractions and proceed.
False [ I THINK ]
You re-scale them so that the denominators are the same.
Find the least common multiple. For example, if the denominators were 6 and 7, the least common multiple would be 42.
convert both to numbers with lowest common denominator then add
First change the mixed numbers into improper fractions by multiplying the denominator and the whole number and add the product to the numerator in the mixed numbers and then multiply the numerators and the denominators and divide the numerator by the denominator of the product.