you have to change the 40% to a decimal. 40 divided by 100 is 0.40. Therefore when you add 65 and 0.40 it will equal 65.4.
A dd t o 65 40% o f t hi s n u mb er C o n v er t 40% t o d ec ima l : 40% = 100 40 = 0 , 4 65 + 40% ∗ 65 = 65 + 65 ∗ 0 , 4 = 65 + 26 = 91 N e w n u mb er i s 91.
To increase 65 by 40%, convert 40% to a decimal (0.40) and multiply it by 65, giving 26. Then, add this increase to the original number, resulting in 91.
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