vova438 M/2a + m/3a = (1/2 + 1/3)m/a = 5/6 • m/a, 
m = 0,6 • 2/3 + 0,35 : 7/16 = 6/10 • 2/3 + 35/100 • 16/7 = 1,2;
а = 3,4 • 2,3 - 5,32 = 7,82 - 5,32 = 2,5; 5/6 • m/a = 5/6 • 1,2/2,5 = 2/5 = 0,4;