Solve an example: 4 whole 7/12*(-1 3/11) - (-1 1/15) * (-45/64) is desirable solve on actions

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1) 4 7/12 • (-1 3/11) = 55/12 • (-14/11) = - 35/6 = - 5 5/6 2) (-1 1/15) • (-45/64) = (-16/15) • (-45/64) = 3/4 3) - 5 5/6 - 3/4 = - 5 10/12 - 9/12 = - 5 19/12 = - 6 7/12
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Answer add