Ian had 440 buttons. He gave
58 of it to Billy and
45 of the remainder to Olivia. How many buttons had he left?
Fraction of the buttons left after giving to Billy
= 1 -
58 =
38 Fraction of the remaining buttons left after giving to Olivia
= 1 -
45 =
15
Fraction of the buttons left after giving to Billy and Olivia
= 38 x 15
= 340
Total number of buttons = 40 u
40 u = 440
1 u = 440 ÷ 40 = 11
Number of buttons left
= 3 u
= 3 x 11
= 33
Answer(s): 33