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2007-04-10 01:03:14 · 3 answers · asked by Harley 1 in Science & Mathematics ➔ Mathematics
6 2/5 - 4 7/10
= 32/5 - 47/10
=(32*2 - 47)/10
=(64-47)/10
=17/10
=1 7/10
2007-04-10 01:15:10 · answer #1 · answered by arindamgdastidar 2 · 0⤊ 0⤋
You are right. The answer is 1 7/10. First you must make the denominators the same. You do this by multiplying the 2/5 by 2 making it 4/10. The equation is now 6 4/10-4 7/10. Change to improper fractions by multiplying 10 by 6 and adding the 4 making it 64/10. Then 10 by 4 and add 7 making it 47/10. The equation is now 64/10-47/10. Subtract the top number and put then over the bottom number making it 17/10. Change to a mixed number by dividing the 10 into 17. It then becomes 1 7/10.
2007-04-10 08:17:38 · answer #2 · answered by Karen C 3 · 0⤊ 0⤋
Heh heh.
6 2/5 = 6 4/10
=
6.4
6.4 - 4.7 = 1.7 = 1 7/10
2007-04-10 08:10:45 · answer #3 · answered by Puppy Zwolle 7 · 0⤊ 0⤋