four fifths is equal to eight tents, so three tenths plus eight tenths is eleven tenths, or one and one tenth
one and five tenths or one and a half
the answer is 9
One half is five tenths. Add three tenths, gives eight tenths. Simplify that by dividing the two values by their highest common factor, which is 2. That gives you four fifths.
It is: 2/5+8/10 = 6/5
Three books plus five books equals eight books. Three bananas plus five bananas equals eight bananas. Three houses plus five houses equals eight houses. Three tenths plus five tenths equals eight tenths.
4/10 + 5/10 = 9/10
twelve and nine tenths/one hundred and twenty nine over ten/12.9
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.