Last updated: 25 July 2022 Algebra Arithmetic Operations $$a(b+c) = ab + ac$$ $${{a \over b} + {c \over d}} = {{ad + bc} \over bd}$$ $${{a + c} \over b} = {{a \over b} + {c \over b}}$$ {{a \over b } \over {c \over d}} = {{a \over b} \times {d \over c}}…