## Equivalent fractions with models

– [Instructor] So what we’re going to do in this video is think about equivalent fractions. So let’s say we have the fraction 3/4, and I wanna think about what is an equivalent number of eighths? So 3/4 is equal to how many eighths? And to represent that how many, I could put a question

## Empirical formula from combustion reaction

– [Instructor] We are told that a sample of a compound containing only carbon and hydrogen atoms is completely combusted, producing 5.65 grams of carbon dioxide and 3.47 grams of H2O or water. What is the empirical formula of the compound? So pause this video and see if you can work through that. All right,

## LearnStorm and Ceiba College Prep

– [Narrator] Watsonville, California is an agricultural community. We have 98% of our students are Latino and about 90% of our students speak Spanish as their first language. Teachers cannot do their job alone. They need to have resources because every class that they receive, which is usually between 25 and 30, has a variety

## Mixed number addition with regrouping

– [Narrator] Let’s see if we can add five and 2/5 to three and 4/5. Pause this video and see if you can figure out what this is. All right, now let’s do this together. We’ve had a little bit of practice adding mixed numbers in the past. And so one way to think about