Allison:

Stupid algebra again

5 months ago
Allison:

3/5 + 1/2

5 months ago

You can’t add fractions that have different denominators.

5 months ago

Do you know what the denominator is?

5 months ago
Allison:

Yes the bottom number

5 months ago
Allison:

I got it. •-•

5 months ago

You sure?

5 months ago
Allison:

Yes don’t stalk my DMs…

5 months ago

?

5 months ago
Allison:

I got help :D

5 months ago
3/5 + 1/2 You would find what is called the least common denominator. This is also the least common multiple. A multiple is a number multiplied by an integer (whole number). You need to find a multiple that both denominators share. Thus, least common denominator. 5 times 2 = 10 2 times 5 = 10 We must alter the form of these fractions, but retain their value. Do so by multiplying by 1. $\frac{ 3 }{ 5 } \times \frac{ 2 }{ 2} = \frac{ 6 }{ 10 }$ $\frac{ 1 }{ 2 } \times \frac{ 5 }{ 5 } = \frac{ 5 }{ 10 }$ Similar to in Algebra, 'what you do to one side, do to the other." What you do to the bottom, do to the top. This keeps the value the same, and also 5/5 = 1 and 2/2 = 1. Multiply by 1 means the number stays the same $\frac{ 6 }{10 } + \frac{ 5 }{ 10 } = \frac{ 11 }{ 10 }$