1) 4 1/5 * ( - 1 4/7 ) = 21/5 * ( - 11/7 ) = - 33/5 = - 6 3/5
2) 5 + ( - 6 3/5 ) = - 1 3/5
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1) - 5 2/3 : 4 1/4 = - 17/3 : 17/4 = - 4/3 = - 1 1/3
2) 5 1/3 : 7/8 = 16/3 : 7/8 = 128/21= 6 2/21
3) - 1 1/3 - 6 2/21 = - 1 7/21 - 6 2/21 = - 7 9/21