Выполните умножение: 1) 9/35 * 8; 2) 7/24 * 16; 3) 42 * 4/7; 4) 6/19 * 57.

1) 9/35 * 8=9/35 * 8/1=72/35=2 2/35; 2) 7/24 * 16=7/24 * 16/1=7/3 * 2/1=14/3=4 2/3; 3) 42 * 4/7=42/1 * 4/7=6/1 * 4/1=24/1=24; 4) 6/19 * 57=6/19 * 57/1=6/1 * 3/1=18.

1) 9/35 * 8=9/35 * 8/1=72/35=2 2/35; 2) 7/24 * 16=7/24 * 16/1=7/3 * 2/1=14/3=4 2/3; 3) 42 * 4/7=42/1 * 4/7=6/1 * 4/1=24/1=24; 4) 6/19 * 57=6/19 * 57/1=6/1 * 3/1=18.