1 2/5 * 2 5/7 - 1 2/5 * 3/14
1) 1 2/5*2 5/7= 7/5*19/7=19/5=3 4/5 2) 1 2/5*3/14=7/5*3/14=3/10 3) 3 4/5-3/10=3 1/10