Simplify: 7/8+1/2 x 3/10.
2007-01-08 11:34:10 · 9 answers · asked by sticinoutt 1 in Science & Mathematics ➔ Mathematics
7 ... 1 ... 3
-- + -- x ---
8 ... 2 .. 10
Since it takes precedence, do the multiplication first by multiplying the numerator and denominator:
7 .... 3
-- + ---
8 ... 20
Now you need a common denominator. The LCM of 8 and 20 is 40, so multiply the first fraction by 5/5 and the second fraction by 2/2:
35 ... 6
--- + ---
40 ...40
Now add the numerators:
41
---
40
And simplify the improper fraction to a mixed fraction
... 1
1 ---
...40
2007-01-08 11:41:32 · answer #1 · answered by Puzzling 7 · 3⤊ 0⤋
7/8 + 1/2 x 3/10 = 7/8 + 4/8 = 11/8 x 3/10 = 11/8 x 3/10 = 33/80 = 0.4125
2007-01-08 20:03:12 · answer #2 · answered by pc187 2 · 0⤊ 0⤋
=7/8+3/20
=41/40
=1 1/40
2007-01-08 19:38:47 · answer #3 · answered by well thts it...... 3 · 2⤊ 0⤋
7/8 + 1/2 * 3/10
First do the multiplication
= 7/8 + 3/20
Now do the addition.
The common denominator is 40
= 35/40 + 6/40
= (35+6)/40
= 41/40
2007-01-08 19:40:37 · answer #4 · answered by MsMath 7 · 2⤊ 0⤋
Follow BEDMAS: Do the multiplication first.
7/8 + 3/20 <----- multiply numerators and then the denominators
= 70/80 + 12/80 <----you need a common denominator of 80 and make equivalent fractions
= 82/80 <----- add only the numerators
= 41/40 <---reduce to lowest terms
= 1 1/40 if you need to go to a mixed number
2007-01-08 19:39:52 · answer #5 · answered by keely_66 3 · 2⤊ 0⤋
7/8+1/2X3/10
=7/8+3/20
=35/40+6/40
=41/40
=1 1/40
s
2007-01-08 20:06:25 · answer #6 · answered by alpha 7 · 0⤊ 0⤋
7/8+3/20
35/40+6/40
41/40= 1 1/40
2007-01-08 19:44:19 · answer #7 · answered by Anonymous · 0⤊ 0⤋
for the first two terms find a lowest common denominator
this happens to be 8
7/8 + 4/8 x 3/10
11/8 x 3/10
then just multiple the numerators together, and denominators together
33/80
2007-01-08 19:38:12 · answer #8 · answered by Anonymous · 0⤊ 4⤋
The answer that div gave is the correct one.
2007-01-08 19:43:55 · answer #9 · answered by ? 2 · 1⤊ 0⤋