Question

Вычислите 22/21-21/22. 40/134-41/156 43/126-41/135. 239/240-229/288

Answer 1

1. знаменатели зачеркни и числители тоже =0
2.
$\frac{40}{134} - \frac{41}{156} = \frac{373}{10452}$
3.
$\frac{43}{126} - \frac{41}{135} = \frac{71}{1890}$
4.
$\frac{239}{240} - \frac{229}{288} = \frac{289}{1440}$