[tex]5 \frac{3}{14} - \:1 \frac{1}{21} = ....[/tex]
INTRODUCEREA ÎNTREGILOR:
[tex]a \frac{b}{c} = \frac{a \times c \: + \: b}{c} [/tex]
[tex]5\frac{3}{14} = \frac{5 \times 14 + 3}{14} = \frac{73}{14} [/tex]
[tex]1 \frac{1}{21} = \frac{1 \times 21 + 1}{21} = \frac{22}{21} [/tex]
[tex] \frac{73}{14} - \frac{22}{21} = ....[/tex]
NUMITOR COMUN: 42
PRIMA FRACTIE AMPLIFICATA CU 3
A DOUA FRACTIE CU 2
219/42 - 44/42 =175/42
