Approximating fractions

find the sum of 1/2 + 1/3 + 1/4 + 1/5 + 1/6 + 1/7 + 1/8

how can we approximate such problems? Approximating fractions in general?

does someone know the quick hack , trick or eye-balling?

The question will be something else. Use that to your advantage.

(eg: if you’re asked to compare the sum you provided to say 4, what would you do?)