Algebraic Fractions

SAME DENOMINATOR1 + 3  = 1+38    8        8           =   4                8           =   1                2

DIFFERENT DENOMINATORS1 + 3 = crosss multiply7    2          = 1 x 2 + 3 x 2                    7 x 2          =  2 + 21                  14          =      23                  14

x + 2a = cross multiply3a  5x            = 5x^2 + 6a                   15ax

2c + 3c = 2c + 3aa       a          a             =   5c                   a

Adding

Multiplying