2/5 - 7/10
= 4/10 - 7/10
= (4-7)/10
= -3/10
negative three tenths
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Nine tenths plus two fifths minus one fourth is equal to 1.05
7
1/2
It is minus one half.
Multiply two fifths by two to get a common denominator. Then you will have 4 tenths plus three tenths. then add straight across and you will get seven tenths.