13. 𝑦6+2𝑦5 = 𝑦×56×5+2𝑦×65×6 = 5𝑦30+12y30 =17𝑦30 Make denominators the same Multiply top and bottom by same number Add the numerators Simplify if you can!
14.
15. Multiply straight across the top (numerators) 𝑦2×43𝑥= Multiply straight across the bottom (denominators) Multiply