А
1.
5.3/4 = 3 + 5·4/4 = 23/4
3.5/7 = 5 + 3·7/7 = 26/7
23/4 × 26/7 = 23·26/4·7 = 598/28
598/28 = 299·2/14·2 = 299/14
299/14 = 5 + 21·14/14 = 21.5/14
2.
1.1/4 = 1 + 1·4/4 = 5/4
3.5/7 = 5 + 3·7/7 = 26/7
5/4 × 26/7 = 5·26/4·7 = 130/28
130/28 = 65·2/14·2 = 65/14
65/14 = 9 + 4·14/14 = 4.9/14
/-делённый
.-целые
Думаю сумировать сама сможешь