Answer:
Step-by-step explanation:
Here is an example:
2/3 +4/5
Cross multiply
3 times 4 = 12
5 times 2 = 10
These 2 products will be added in the numerators
Now multiply denominators
3 times 5 = 15
Finally form them into a fraction
12+10/15
22/15
This method is not the original way to do it but its just how I do it quickly
Here is the original method:
2/3+4/5
Get common denominators
Multiply the first fraction (both numerator and denominator) by 5
2(5)/3(5) = 10/15
Now multiply the second fraction (both numerator and denominator) by 3
4(3)/5(3) = 12/15
Add those 2 fractions together and you should get 10/15+12/15 = 22/15
Step-by-step explanation:
⅛
In this fraction, 1 is called numerator and 8 is called denominator.
Let's say you want to add ⅛ and ⅞. Here, denominators are same, so you just add the numerator and denominator remains the same. So, it becomes (1+7)/8 = 8/8.
If the denominator is different you first make them same, by cross multipling.
Let's say you want to add ¼ and ⅔. Then you multiply the numerator and denominator of ¼ by 3 (because it is the denominator of the second fraction). So, ¼ becomes (1×3)/(4×3) = 3/12. The same goes for ⅔, you multiply the numerator and denominator by 4 (it is the denominator of the other fraction). So, ⅔ becomes (2×4)/(3×4) = 8/12. So, now you add 3/12 and 8/12 the same way you added ⅛ and ⅞ above. Add the numerator, denominator remains the same. So, answer is (3+8)/12 = 11/12.
Hope it helps!!
