Пошаговое объяснение:
6/35+3/10=12\70+21\70=33\70
8/15-4/9=24\45-20\45=4\45
4/15+7/12=16\60+35\60=51\60
6/35+3/10=12/70+21/70=33/70
8/15-4/9=24/45-20/45=4/45
4/15+7/12=16/60+35/60=51/60=17/20
Пошаговое объяснение:
6/35+3/10=12\70+21\70=33\70
8/15-4/9=24\45-20\45=4\45
4/15+7/12=16\60+35\60=51\60
6/35+3/10=12/70+21/70=33/70
8/15-4/9=24/45-20/45=4/45
4/15+7/12=16/60+35/60=51/60=17/20