Iman Nasir's answer to HY's Secondary 1 Maths question.
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1. You must cross the numerator and denominator so you could calculate the unknown, r.
2. If denominator is brought to the other side, it will be times with the numerator at that side. Vise versa.
You could see in the calculation I provided.
3-r is the denominator, I brought it to the other side. So it become 1 x (3-r) totalling to 3-r.
4. Bring the unknown together. If -r brought to the other side, it become +r.
5. Now we got 2r that is equal to 1.
6. 1r is equal to 1/2.
Hope this helps!
2. If denominator is brought to the other side, it will be times with the numerator at that side. Vise versa.
You could see in the calculation I provided.
3-r is the denominator, I brought it to the other side. So it become 1 x (3-r) totalling to 3-r.
4. Bring the unknown together. If -r brought to the other side, it become +r.
5. Now we got 2r that is equal to 1.
6. 1r is equal to 1/2.
Hope this helps!
Date Posted:
6 years ago
Thank u!
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