In yesterday's math class, we learned how to deal with unwanted decimals in equations. If you come across a decimal in an equation, and do not feel comfortable using it when solving the equation, then it is easy to transform the decimal into a whole number. An easy way to get rid of decimals is to multiply the decimal by it's greatest place value. For example, 7.8*10=78. Remember, whatever you do to one side you must do to the other so make sure that you multiply all of the terms in an equation if you are to multiply the decimal. Here's an example:
7.8y + 2 = 165.8
7.8y(10)+2(10)=165.8(10) Multiply all terms by 10 to get rid of decimals.
78y+20=1658 Now there are no decimals so you can easily solve the equation.
78y+20-20=1658-20
78y=1638
78y/78=1638/78
y=21
Check:
7.8y+2=165.8
165.8=165.8
Post by Kate M
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10 comments:
I needed help getting rid of fractions and this really helped me.
.....i meant decimals
This obviously had a lot of effort to this. This is very well written and clear. It made me understand the concept more clearly. Thank you!!! <33
Yea, I deleted my post because I thought it wouldn't have the post and my name anymore, but it has it anyway. The comment was the same exact one too. sigh...
this is very well written and will really help any having problems with decimals
Good Job very colorful :)!!!
Nice explanation
Good explaining! It helps a lot!!
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