Question

$2 \frac{1}{4} - \frac{5}{6} + \frac{1}{12} \: este \: egala \: cu$

Answer 1

Răspuns

Explicație pas cu pas:

→ introducem intregii in fractie

2 intregi si 1 / 4 = ( 2 × 4 + 1 ) / 4 = 9 /4

9 / 4 - 5 / 6 + 1 / 12 = 1 intreg si 1 / 2

→ c.m.m.m.c al numitorilor ( 4;  6   si 12 ) = 12

→ aducem fractiile la acelasi numitor

= ( 9 × 3 ) / ( 4 × 3 ) - ( 5 × 2 ) / ( 6 × 2 ) + 1 / 12 =

= ( 27  - 10 + 1 ) / 12 =

= 18 / 12 =

= ( 18 : 6 ) / ( 12 : 6 ) = → simplific cu 6

= 3 / 2 =

= 1 intreg si 1 / 2

Answer 2

Salut !

$2 \frac{1}{4} - \frac{5}{6} + \frac{1}{12} =$

$\frac{9}{4} - \frac{5}{6} + \frac{1}{12} =$

$\frac{27}{12} - \frac{10}{12} + \frac{1}{12}(am \: amplificat)$

$\frac{17}{12} + \frac{1}{12} = \frac{18}{12} = \frac{9}{6} = \frac{3}{2}$

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