please show how ,thanks
2007-04-06 06:26:09 · 5 answers · asked by Harley 1 in Science & Mathematics ➔ Mathematics
First, change both to improper fractions...
1 4/5 = 5/5 + 4/5 = 9/5
3 7/8 = 24/8 + 7/8 = 31/8
Now, you just multiply across the top and across the bottom...
(9/5) (31/8)
= (9*31)/(5*8)
= 279 / 40
You can change that back to a mixed number if you want...
279 = 6(40) + 39
so
279/40 = 6 and 39/40
2007-04-06 06:31:15 · answer #1 · answered by Mathematica 7 · 0⤊ 0⤋
1 4/5 x 3 7/8=
(9)/5 x (31)/8=
279/40
2007-04-06 13:30:10 · answer #2 · answered by bsbllplayr216 3 · 0⤊ 0⤋
1 4/5 is equal to (4+5)/5=9/5
3 7/8 is equal to (7+3*8)/8=31/8
9/5 * 31/8 = (9*31)/(5*8)=279/40
2007-04-06 13:31:24 · answer #3 · answered by bruinfan 7 · 0⤊ 0⤋
1 4/5 * 3 7/8
1 4/5 = 9/5
3 7/8 = 31/8
9/5 * 31/8 = (9*31)/(5*8)
= 279/40
2007-04-06 13:29:34 · answer #4 · answered by trojanknight_96 3 · 0⤊ 0⤋
1 23/40
2007-04-06 13:33:04 · answer #5 · answered by Dani 2 · 0⤊ 0⤋