1/4 + .8 + .3 can you add fractions and decimals? BE CAREFUL! Easy to make a mistake…

How to add fractions and decimals. In this video, I will explain how to add a fraction and decimals two ways. First, you can change a fraction to a decimal and add all the decimals. Next, I will show you how to change a decimal to a fraction and add the fractions - both ways produce the correct answer.

For more in-depth math help check out my catalog of courses. Every course includes over 275 videos of easy to follow and understand math instruction, with fully explained practice problems and printable worksheets, review notes and quizzes. All courses developed and taught by me (experienced and certified math teacher 🤩).
With my courses you CAN reach your math goal! 💪

✓Help with Middle and High School Math (Public/Private Schools)
✓High School & College Math Test Prep
✓Teacher Certification Math Test Prep
✓Homeschool Math Program and Courses for Pre-Algebra, Algebra 1, Geometry, Algebra 2 and Pre-Calculus.

TC Math Notes

[arnoldkellner]

I did it in less than 10 seconds. Of course I’m 76 years old and a math nerd. I can see math in my head. I get into trouble with my grand kids because I like to skip steps, showing your work was not how I learned to do math.🇺🇸🇺🇸🇺🇸👍😂

[argonwheatbelly]

1.35 in about five seconds in my head. Nice one!

[stevenjohnson]

Simple convert the fraction to its decimal equivalent so .25 plus .8 1.05 plus .3 totaling 1.35

[mitchbogart]

When choosing between converting to decimals or converting to fractions, especially given easy decimals to convert, fractions are better and maintain the infinitely precise, perfect answer. With decimals it could very easily come out inexact. If one immediately converts 0.8 to 4/5, you're practically done! You have some 4ths, 5ths, and 10ths as denominators. 4x5=20 is the obvious choice for the lowest common denominator, so you easily convert the fractions to 20ths, add to get 27/20 and in 10 seconds you're done.

I think most people of all ages really remember their arithmetic. In any case, short videos like this one quickly refresh people's memory!

[christopherromero]

Read through comments. Agree with one stating to use leading zeros for decimal fraction representation. Solved for the 1.35 using ¼=0.25, then reduced the 0.35 to get mixed number 1 7/20, but forgot the fraction only solution of 27/20. Good video for learner's (other than the preceding 0 comment - which was drilled into us when told "show your work" - got deducted points for that representation. The reason being "the decimal may not always be visible (when quickly writing by hand) and the fraction cannot be mistakes." This, plus: "Never do math in ink; always use pencil." Semantics, petty stuff????

[Herlongian]

I would go 5/20+16/20+6/20= 27/20. If you are an arithmetic student, convert 27/20 to a mixed number for practice or a decimal number for practice. If you are an algebra student, you already know how to do that so you are done!

[contessa.adella]

0.25+0.8+0.3 takes about five seconds to add up in your head. Seeing the video, I don’t get why you’d be converting it all into fractions first. That’s just making work for nowt.

[stevemoss]

In all modesty I cannot conceive how you can make a 17 minute video to explain something that can be calculated in your head before the second advert starts...?

[enriqueiii]

27 ÷ 20 = 1 7/20, your students and others are going to get confuse, so explain how you would get .35.

[johngiorgi]

Sadly I think you are not teaching people correctly when using decimals. You should always use a zero before the decimal to avoid mistakes. So 0.8 instead of.8, etc. Anyway, the new way is just plain lazy. Someday this will be costly. I will give you a thumbs down.