math help?

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I am just checking to see if you guys got the same answer. 12 and 9 tenths minus 10 and one fifths. What did you get?

2007-02-08 12:50:33 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics

12.9-10.2=2.7

2.7!

*(why 10.2?...because 1/5 is equal to .2)

2007-02-08 12:56:22 · answer #1 · answered by Benv 3 · 0⤊ 0⤋

12-9/10 - 10-1/5
= 12-9/10 - 10-2/10
= 2-7/10

2007-02-08 12:54:05 · answer #2 · answered by TychaBrahe 7 · 0⤊ 0⤋

2 7/10

2007-02-08 12:54:57 · answer #3 · answered by jacket2230 4 · 0⤊ 0⤋

9.3

2007-02-08 12:53:22 · answer #4 · answered by fehnwickfalcon2010 2 · 0⤊ 0⤋