Answer: 4/7
Explanation:
pretty simple, 1/7 and 3/7 both has a denominator of "7", so the seven stays the same. (While writing this I made a chart to see where I put everything)
Write:
1/7 = (denominator 7)
+ 3/7 = (denominator 7)
Now we start doing the math, what goes into 7? 7x1 so 1 x 3 = 3
know we go up to the numerator, 7x1=7, so 1 x 1 = 1
add 3 + 1 and that adds up to 4
so your answer is 4/7, hope it helps