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/sci/ - Science & Math

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15221078 No.15221078 [Reply] [Original]

Can anybody help me do simple math? I forget how
Right now I'm trying to add fractions and do division.

>> No.15221084

>>15221078
Start with Shlomo Sternberg's Calculus.

>> No.15221087

>>15221078
If you can't do it with the entire resources of the world wide web at your disposal and have to resort to coming to this raw sewage pit instead, it's unironically over.

>> No.15221098

>>15221087
>>15221084
Spoonfeeding off of 4chan is my preferred method of learning

>> No.15221178

To add fractions you have to make the denominators the same.
Say you want to add 1/3 and 1/2.
Multiply 1/3 by 2/2 to get 2/6.
Multiply 1/2 by 3/3 to get 3/6.
2/6 + 3/6 = 5/6.

>> No.15221498

>>15221178
Source?

>> No.15221583

>>15221078
google wildberger insight to mathematics he covers it from scratch

>> No.15221606
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15221606

Harambe lives

>> No.15222351

>>15221178
I remembered this much, but wasn't there a trick to doing it with numbers that don't have an obvious LCM? And after that wasn't there a trick to simplifying the end result? I actually did try to use youtube but it didn't help...

>> No.15222498

>>15221078
a/b + c/d = (ad + bc)/bd

>> No.15222667

>>15222351
Dont memorize tricks
if you cannot prove that it works dont use it

>> No.15223130

your local community college can help you