Question

ayuda pliss

LEYES DE AGRUPACIÓN APLICADAS A LAS CUATRO OPERACIONES ARITMÉTICAS

1) (5 X 6 X 3) ÷ 15 =
2) (3 + 2) ÷ 5 + (8 + 10) ÷ 2 =

3) (5 – 2) ÷ 3 + (11 – 5) ÷ 2 =

4) (9 + 6 – 3) ÷ 4 + (8 – 2) ÷ 3 – (5 – 3) ÷ 2 =

5) (3 X 2) ÷ 6 + (19 – 1) ÷ (5 + 4) =

Answer 1

Respuesta:

1) (5 X 6 X 3) ÷ 15 = 90÷15 = 6

2) (3 + 2) ÷ 5 + (8 + 10) ÷ 2 = 6÷5+18÷2 = 1.2+18÷2 = 19.2÷2 = 9.6

3) (5 – 2) ÷ 3 + (11 – 5) ÷ 2 = 3÷3+6= 1+6  = 7

4) (9 + 6 – 3) ÷ 4 + (8 – 2) ÷ 3 – (5 – 3) ÷ 2 = 12÷4+6÷3-2 = 1

5) (3 X 2) ÷ 6 + (19 – 1) ÷ (5 + 4) = 6÷6+18÷9 = 1+18÷9 = 19÷9 = 2.111111111111111

1)        2/3+5/6 = $\frac{4+5}{6} =\frac{9}{6} =\frac{3}{2}$

2)       5/4+7/8+1/16 = $\frac{20+14+1}{16}=\frac{35}{16}$

3)       3/( 4)+5/8+2/5+3/10 = $\frac{30+25+16+12}{40}=\frac{83}{40}$

4)       5 4/5+6 2/5+8 3/5 = $\frac{54+62+83}{5}=\frac{199}{5}$

5)       4 1/4+5 1/8+ 7 1/16 = $\frac{164+102+71}{16}= \frac{337}{16}$

6)       3/15-1/45-1/90 = $\frac{54-6-3}{270} =\frac{45}{270}$

7)      (2/3+3/4)-(1/2+ 1/6) = $(\frac{2}{3}+\frac{3}{4})-(\frac{1}{2}+\frac{1}{6})= \frac{8+9}{12}-\frac{3+1}{6}=\frac{17}{12}-\frac{4}{6}=\frac{17-8}{12}=\frac{9}{12}$

8)       6/7 x 7/8 = $\frac{6}{7}*\frac{7}{8}=\frac{42}{56}$

9)       13/4 x 72/39 = $\frac{13}{4} *\frac{72}{39}= \frac{936}{156}$

10)      21/22 x 11/49 = $\frac{21}{22}* \frac{11}{49}= \frac{231}{1078}$

Explicación paso a paso:

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