Question

7/9 + 10/4 - 8/2 + 5/7
4/9 - 5/8 - 2/3 + 8/5

7/2 + 3/10 + 8/5 - 4/2

Answer 1

Respuesta:

1. -1/126

2. 271/360

3. 3 2/5

Explicación paso a paso:

1. 7/9 + 10/4 - 8/2 + 5/7 =

196/252 + 630/252 - 1008/252 + 180/252 =

-2/252 = -1/126

2. 4/9 - 5/8 - 2/3 + 8/5 =

160/360 - 225/360 - 240/360 + 576/360 =

736/360 - 465/360 = 271/360

3. 7/2 + 3/10 + 8/5 - 4/2 =

35/10 + 3/10 + 16/10 - 20/10 = 34/10 = 17/5 = 3 2/5

RPTA:

1. -1/126

2. 271/360

3. 3 2/5