8 3/4 * 2 4/7 – 10 1/8 *3/10
8 3/4*2 4/7-10 1/8*3/10=35/4*18/7-81/8*3/10=45/2-243/80= =22 1/2-3 3/80=22 40/80-3 3/80=19 37/80