Simple calculation: 7 / 24 * 3 / 4 + 7 / 24 * 1 / 4

Simple calculation: 7 / 24 * 3 / 4 + 7 / 24 * 1 / 4

7/24×3/4+7/24×1/4
=7/24×(3/4+1/4)
=7/24