Question

1/3*7+1/7*11+1/11*15+.....1/47*51=
Explain it properly, step by step.

Answer 1

1/3*7+1/7*11+ 1/11*15+ 1/15*19+1/19*23+1/23*27+ 1/27*31+ 1/31*35+ 1/35*39+ 1/39*43+1/47*51=explanation 1/3*7 next 7+1+3=11. 1|11* 11×1+3 etc.