Ответ:
3 1/5 -1/4=3×5+1/5 - 1/4 = 16/5-1/4=4×16/4×5-5×1/5×4=64/20-5/20=64-5/20=59/20 = 2,95
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Ответ:
3 1/5 -1/4=3×5+1/5 - 1/4 = 16/5-1/4=4×16/4×5-5×1/5×4=64/20-5/20=64-5/20=59/20 = 2,95