PSLE Erika bought some corn flour and some mix grain flour. She used an equal amount of corn flour and mix grain flour. She had
45 of the corn flour and
57 of the mix grain flour left. What fraction of the flour which Erika used?
Corn flour |
Mix grain flour |
Total |
5x2 |
7 |
|
Used |
Left |
Used |
Left |
|
1x2 |
4x2 |
2 |
5 |
|
2 u |
8 u |
2 u |
5 u |
17 u |
The quantity of corn flour and mix grain flour used is the same. Make these 2 quantities the same. LCM of 1 and 2 is 2.
Fraction of the flour bought that was used
=
2 + 210 + 7 =
417Answer(s):
417