bjr
2⁵⁰ 3⁴⁹
B = ------ x ------- = 2⁵⁰ x 3⁴⁹ x 3⁻⁵⁰ x 2⁻⁴⁹ = 2⁵⁰⁻⁴⁹ x 3⁴⁹⁻⁵⁰
3⁵⁰ 2⁴⁹
= 2¹ x 3⁻¹
= 2/3
4⁵⁰ 9⁴⁹ (2²)⁵⁰ (3²)⁴⁹ 2¹⁰⁰ 3⁹⁸
C = ------- x ------ = -------- x --------- = -------- x ---------
3⁵⁰ 2⁴⁹ 3⁵⁰ 2⁴⁹ 3⁵⁰ 2⁴⁹
= 2¹⁰⁰⁻⁴⁹ x 3⁹⁸⁻⁵⁰
= 2⁵¹ x 3⁴⁸
