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[tex] (\frac{7}{12} - \frac{1}{3}) * \frac{16}{19} [/tex]

[tex] (7\frac{3}{5} - 2\frac{4}{15}) * \frac{9}{32} [/tex]

[tex]( \frac{11}{24} + \frac{1}{6} )* 1\frac{3}{5} [/tex]

[tex](7- 2\frac{5}{16}) * \frac{4}{25} [/tex]

=(7/12 - 4/12) * 16/19 = 3/12 * 16/19 = 1/4 * 16/19 = 4/19-----------------------------------------------------------------=(7 9/15 - 2 4/15) * 9/32 = 5 1/3 * 9/32 = 16/3 * 9/32 = 3/2 = 1 1/2-------------------------------------=(11/24 +4/24) * 1 3/5 = 15/24 * 8/5 = 3/3 = 1------------------------------=(6 16/16 - 2 5/16 ) *4/25 = 4 11/16 * 4/25 = 75/16 * 4/25 = 3/4

расписано решение на фото. удачи)