Rút gọn phân số.
18/30=............................................................................................
48/96=.........................................................................................
64/720=......................................................................................
42/98=........................................................................................
18/30=3/5
48/96=1/2
64/720=4/45
42/98=6/14=3/7
18/30=3/5
48/96=1/2
64/720=4/45
42/98=3/7
bạn tk mk nha~~~