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2007-01-14 10:50:10 · 9 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
8 9/10
3 2/4 = 3.5
5 2/5 = 5.4
3.5+5.4=8.9
8.9= 8 9/10
2007-01-14 10:53:15 · answer #1 · answered by dennismeng90 6 · 1⤊ 0⤋
First, convert each and each mixed quantity to an fallacious fraction: 3 a million/2 = 7/2 [2x3+a million=7], and four 2/5 = 22/5 [5x4+2=22]. you are able to now see that the bottom effortless denominator for those 2 fractions is 10 [ elements are 2 and 5]...... so the first fraction converts to 35/10 and the second one fraction converts to 40 4/10. upload the numerators jointly and the entire is seventy 9 (over 10) and on account that seventy 9 is a best quantity the answer won't be able to be decreased any better. answer is seventy 9/10 and would also be expressed as 70 9/10.
2016-11-23 18:31:48 · answer #2 · answered by ? 4 · 0⤊ 0⤋
3 10/20+5 8/20=
8 18/20=
8 9/10
2007-01-14 11:15:22 · answer #3 · answered by Anonymous · 0⤊ 0⤋
3 2/4+5 2/5=
LCD= 20
3 10/20 + 5 8/20= 8 18/20= 8 9/10----Answer
2007-01-14 11:56:23 · answer #4 · answered by Dave aka Spider Monkey 7 · 0⤊ 0⤋
3 2/4 + 5 2/5
= 14/4 + 27/5
=7/2 + 27/5
=(7*5 + 2*27)/(2*5)
=(35+54)/10
=89/10.
2007-01-14 11:16:45 · answer #5 · answered by hirunisha 2 · 0⤊ 0⤋
you have to get LCD for the fractions
2/4=5/10
2/5=4/10
3 5/10+5 4/10=8 9/10
2007-01-14 10:56:23 · answer #6 · answered by yupchagee 7 · 1⤊ 0⤋
3 2/4 = 3 1/2 = 7/2
5 2/5 = (27/5)
(7/2) + (27/5)
(35/10) + (54/10)
(35 + 54)/10
(89/10)
ANS : (89/10) or 8 9/10
2007-01-14 12:38:25 · answer #7 · answered by Sherman81 6 · 0⤊ 0⤋
14/4 +27/5
70/20 + 108/20
178/20
89/10
8 9/10
2007-01-14 10:55:16 · answer #8 · answered by roman_ninja 3 · 1⤊ 0⤋
8.9
2007-01-14 10:55:44 · answer #9 · answered by Anonymous · 1⤊ 0⤋