0.981
1/2 spoon
What must be added to 3 tenths to make 1 whole
7/10 must be added to 3/10 to make 1 whole.
495-450= 45. 450x = 45, where x is percentage. x = 45/450 = 1/10 = 10%.
1+1+1+42
1
1
0.997
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7/10 must be added to 3/10 to make a whole number, 1.
1, 2 and 21 when added.