Imagine it's your birthday party and you have a huge chocolate cake.
To share your cake with your friends, you will need to cut it up into pieces.
Each piece is a fraction.
If you cut your cake into 4 parts, 1 piece would be 1 out of 4:
If you take 2 pieces from that cake it will be 2/4
3 pieces would be 3/4
4 pieces would be 4/4, which is the whole cake!
From smallest to biggest: 1/4, 2/4, 3/4 and 4/4