1) 17/36 - 5/18 = (172)/(362) - (52)/(182) = 34/72 - 10/72 = 24/72 = 1/3
Проверка: 1/3 = 24/72 = (24+10)/72 = 34/72 = 17/36 - 5/18
2) 49/50 - 14/25 = (492)/(502) - (142)/(252) = 98/100 - 28/50 = 49/50 - 14/25 = 21/50
Проверка: 21/50 = 98/100 - 28/50 = (98-28)/100 = 70/100 = 7/10 = 21/50
3) 18/16 - 2/3 = (183)/(163) - (216)/(316) = 54/48 - 32/48 = 22/48 = 11/24
Проверка: 11/24 = 54/48 - 32/48 = (54-32)/48 = 22/48 = 11/24
4) 23/24 - 7/8 = (233)/(243) - (73)/(83) = 69/72 - 21/24 = 48/72 = 2/3
Проверка: 2/3 = 69/72 - 21/24 = (69-63)/72 = 48/72 = 2/3.
1) 17/36 - 5/18 = (172)/(362) - (52)/(182) = 34/72 - 10/72 = 24/72 = 1/3
Проверка: 1/3 = 24/72 = (24+10)/72 = 34/72 = 17/36 - 5/18
2) 49/50 - 14/25 = (492)/(502) - (142)/(252) = 98/100 - 28/50 = 49/50 - 14/25 = 21/50
Проверка: 21/50 = 98/100 - 28/50 = (98-28)/100 = 70/100 = 7/10 = 21/50
3) 18/16 - 2/3 = (183)/(163) - (216)/(316) = 54/48 - 32/48 = 22/48 = 11/24
Проверка: 11/24 = 54/48 - 32/48 = (54-32)/48 = 22/48 = 11/24
4) 23/24 - 7/8 = (233)/(243) - (73)/(83) = 69/72 - 21/24 = 48/72 = 2/3
Проверка: 2/3 = 69/72 - 21/24 = (69-63)/72 = 48/72 = 2/3.