2 4/5 - (-3 9/10) solve the equation in simplest form

The answer is:

Step-by-step explanation:

1. We write out the equation

2. Convert the fractions to have the same denominator

3. We can change the sign to positive because a double negative cancels out

4. Add the 2 + 3 = 5 and 8 + 9 = 17

5. Simplify and you get . Then add that to 5. (5 + )

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(Please mark this answer as brainiest)

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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step-by-step explanation: