It's 3, all terms are divisible by it
Answer:
Example 1: 48
Example 2: 15
Example 3: 26
Example 4: 37
Step-by-step explanation:
Answer:
see graph of y=3/4 x-4
Step-by-step explanation:
Assuming you mean

Below is a graph of that one. The slope is 3/4 and the interception with the y axis is at y=-4. The equation is in its normal form y=ax+b with a=3/4 (slope) and b=-4 (y intercept), so no conversion needed.
You have to be careful on how you write these equations down. It might very well be that you meant:
or 
However, those are more complex so I'm hoping for the first one... ;-)
Answer:
La familia bebió:
2 botellas de 1.5 L = 2*1.5L = 3L
5 botellas de 1/4 de litro = 5*(1/4 L) = 5/4 L
4 botellas de 1/4 de litro = 4*(1/4 L) = 1 L
Sumando eso, tenemos:
3 L + (5/4) L + 1L = 4L + 5/4 L = (16/4) L + 5/4 L = (21/4) L.
21/4 Litros tomaron en total.
¿podemos directamente sumar y restar fracciones de distintos denominadores?
No, tenemos que tener el mismo denominador para sumar o restar.