Răspuns :
8:3=2r2. 40:3=10 r10. 80:3=20 rest 20. 2. 11:5=2 r1. 22:5=4 r2. 44:5=8 r4. 3.a:b=3 r5. a+ b=325. a=3 b+5. 3 b+5+ b=325. 4 b=325 minus 5. 4 b=320. b=320:4. b=80. a=325 minus 80. a=245. 245:80=3 r5. 4. a minus b=227. a: b=5 r3. a=5 b+3. 5 b+3 minus b=227. 4 b=227 minus 3. 4 b=224. b=224:4. b=56. a=227+56. a=283:56=5 r3