70 is one fourth of 280.
Let we assume that 70 is x part of 280. Then that means summing 70 x times will result in 280 as answer.
We can deduce the value of x as shown below:
[tex]70 + 70 + ... \text{(x times)} = 280\\70 \times x = 280\\\\\text{Dividing by 70 on both sides}\\\\x = \dfrac{280}{70}\\x = 4[/tex]
Thus, 70 is one fourth (since it is one of same 4 parts who compose 280) of 280.
Learn more about fractions here:
https://brainly.com/question/1301963
