Question

3 intregi si 11 pe 15 minus 1 intreg si 7 pe 10

Answer 1

3 intregi 11/15 = (3 x 15 + 11)/15 = (45 + 11)/15 = 56/15
1 intreg 7/10 = (1 x 10 + 7)/10 = 17/10
56/15 - 17/10 = 112/30 - 51/30 = (112 - 51)/30 = 61/30

Answer 2

3 si 11/15-1 si 7/10=56/15-17/10
Amplifica prima fractie cu 2 si pe a doua cu 3
112-51/30=61/30