The sum of (eight and nine tenths) plus (nine and eight tenths) is (eighteen and seven tenths). 8.9 + 9.8 = 18.7
7 6/10
It is one and nine twentieths.
7.72
Thirteen tenths
1 2/5
4/5 + 7/10 + 9/10 = 8/10 + 7/10 + 9/10 =24/10 or 2.4
nine tenths
12/10 or 6/5
One hundred and thirty one point five.
Nine tenths plus two fifths minus one fourth is equal to 1.05
22 over thirty