4/1/3+1

4 / ( 1/3 + 1 )
Our fraction has yet another fraction in the denominator, to solve or simplify the fraction in the denominator we have to add 1/3 + 1
Being able to add two fractions requires the denominator to be equal, the 1 can be converted to the fraction 3/3 now we'll do our addition:
1/3 + 3/3 = 4/3
Now we have 4 / (4/3) and yet still a fraction in the denominator and when we have either a fraction in the numerator or denominator we convert also the other one into a fraction, thus 4 becomes 4/1 and we get:
(4/1) / (4/3) in order to divide two fractions we exchange both numerator and denominator of the second fraction to convert the sum from division into a multiplication thus (4/3) becomes (3/4) so we'll get:
(4/1) * (3/4) = (4*3) / (1*4) = 12 / 4 = 3
If you're familiar with fractions you can (cross) simplify (4/1) * (3/4) into (1/1) * (3/1) = 1 * 3 = 3

Maggie Matt, what device are you using? The answer key can be accessed after you have made a choice. You can look up the answer, or continue to the next question.