`\color{#08192D}{|}\color{#102A43}{=}\color{#1F3B73}{****}\color{#2A4D8F}{+}\color{#3A63B8}{**}\color{#4A7EDC}{+}\color{#5AA6FF}{*}\color{#2E6BD3}{o}\color{#3A7FE8}{l}\color{#4693FF}{a}\color{#5AA6FF}{l}\color{#6FB9FF}{a}\color{#82CCFF}{9}\color{#95DFFF}{9}\color{#A8F2FF}{9}\color{#5AA6FF}{*}\color{#4A7EDC}{+}\color{#3A63B8}{**}\color{#2A4D8F}{+}\color{#1F3B73}{***}\color{#102A43}{=}\color{#08192D}{|}`

`M = 6/4 + 6/5 + 6/7 − 6/11`

`M= 2310/1540 + 1848/1540 + 1320/1540 − 840/1540`

M= (2310 + 1848 + 1320 − 840) / 1540

`M= 4638/1540`

`M= 2319/770`

`-----`

`N = 2/3 + 2/5 − 2/7 − 2/11`

`N= 770/1155 + 462/1155 − 330/1155 − 210/1155`

`N= (770 + 462 − 330 − 210) / 1155`

`N= 692/1155`

`------`

`N = 2 + 6/5 − 6/7 − 6/11`

`N= 770/385 + 462/385 − 330/385 − 210/385`

`N= (770 + 462 − 330 − 210) / 385`

`N= 692/385`