Ya hay estan las respuestas
f) 4/5 - 8/7(3/2) = 4/5 - 24/14 simplificando la segunda expresión... = 4/5 - 12/7 = (28 - 60)/35 = -32/35
g) 4/9 (- 1/4) ÷ 2/5 = (-4/36) ÷ 2/5 = (-4/36) × 5/2 = -10/36
h) 2/7 - 3/4 (-1/7) = 2/7 + 3/28 = (8 + 3)/28 = 11/28
i) -3/5 + 8/7 (7/5) = -3/5 + 8/5 = (-3 + 8)/5 = 5/5 =1
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Ya hay estan las respuestas
f) 4/5 - 8/7(3/2) = 4/5 - 24/14 simplificando la segunda expresión... = 4/5 - 12/7 = (28 - 60)/35 = -32/35
g) 4/9 (- 1/4) ÷ 2/5 = (-4/36) ÷ 2/5 = (-4/36) × 5/2 = -10/36
h) 2/7 - 3/4 (-1/7) = 2/7 + 3/28 = (8 + 3)/28 = 11/28
i) -3/5 + 8/7 (7/5) = -3/5 + 8/5 = (-3 + 8)/5 = 5/5 =1