MatemáticasBásico1 respuestas

A 4 / 5 x (2 / 3 + 7 / 5)B (9 / 10 x 1 / 3) (4 / 5 ÷ 1 / 2)C (8 / 7 ÷ 3 / 9 ) + (9 / 4 - 1 / 2 )D (7 / 10 x 45 / 3 ) + ( 13 / 5 ÷ 14 / 4)?

A 4 / 5 x (2 / 3 + 7 / 5) B (9 / 10 x 1 / 3) (4 / 5 ÷ 1 / 2) C (8 / 7 ÷ 3 / 9 ) + (9 / 4 - 1 / 2 ) D (7 / 10 x 45 / 3 ) + ( 13 / 5 ÷ 14 / 4).

8Elkangas25

En resumen

A) = 4 / 5(10 + 21 / 15) = 4 / 5(31 / 15) = 124 / 75 b) = (9 / 30)(8 / 5) = (3 / 10)(8 / 5) = 24 / 50 c) = (72 / 21) + (9 - 2 / 4) = (24 / 7) + (7 / 4) = 24 / 7 + 7 / 4 = 96 + 49 / 28 = 147 / 28 d) = 315 / 30 + 52 / 70 = 22050 + 1560 / 2100 = 23610 / 2100 = 2361 / 210.

Mejor respuesta

Princessach4596

7

A) = 4 / 5(10 + 21 / 15) = 4 / 5(31 / 15) = 124 / 75

b) = (9 / 30)(8 / 5) = (3 / 10)(8 / 5) = 24 / 50

c) = (72 / 21) + (9 - 2 / 4) = (24 / 7) + (7 / 4) = 24 / 7 + 7 / 4 = 96 + 49 / 28 = 147 / 28

d) = 315 / 30 + 52 / 70 = 22050 + 1560 / 2100 = 23610 / 2100 = 2361 / 210.