Latihan
Latihan tambahan
7 soalan untuk mengukuhkan unit Pecahan Setara. Jika salah, baca petunjuk dan cuba lagi.
Pecahan manakah setara dengan 39?
同除得到等值分数 = bahagi untuk pecahan setara
3 和 9 都能被 3 整除,所以上下一起除以 3,得到分母更小的分数。上下用同一个除数,大小就不会改变。
例子:5/10 → 上下都除以 5 → 1/2。
注意:只除分子、分母不变,分数的大小就改变了。
divide to get an equivalent = bahagi untuk pecahan setara
3 and 9 both divide exactly by 3, so divide the top and the bottom together to get a fraction with a smaller denominator. Using the same divisor for both keeps the value.
Example: 5/10 → both divided by 5 → 1/2.
Watch out: dividing only the top and leaving the bottom alone changes the size.
610 = ?5
求缺少的分子 = cari pengangka yang hilang
先看分母:从 10 变成 5,想一想是除以几。分子也必须除以同一个数。这样上下用了同一个除数,两个分数就等值。
例子:8/10 = ?/5 → 8 ÷ 2 = 4。
注意:分子不能保持不变,也不能直接抄分母的数。
find the missing numerator = cari pengangka yang hilang
Look at the denominators first: 10 becomes 5, so work out what it was divided by. The numerator must be divided by the same number. Then top and bottom share one divisor and the fractions are equivalent.
Example: 8/10 = ?/5 → 8 ÷ 2 = 4.
Watch out: the numerator cannot stay the same, and you cannot just copy the denominator.
13 = ?9
求缺少的分子(乘法)= cari pengangka dengan darab
分母从 3 变成 9,想一想是乘几。分子也要乘同一个数。上下乘同一个数,分数大小不变。可以用分数墙检查:1/3 往下对齐九分之几的那一格。
例子:1/4 = ?/8 → 1 × 2 = 2。
注意:6/9 是 2/3 的等值分数,不是 1/3 的。
find the missing numerator by multiplying = cari pengangka dengan darab
The denominator goes from 3 to 9, so work out what it was multiplied by and multiply the numerator by the same number. The same multiplier on top and bottom keeps the size. Check on a fraction wall by following 1/3 down to the ninths row.
Example: 1/4 = ?/8 → 1 × 2 = 2.
Watch out: 6/9 is equivalent to 2/3, not to 1/3.
Apakah yang ditunjukkan oleh rajah ini?
读长条图 = baca rajah jalur
两条长条一样长。比较时不要看数字的大小,而是看涂色部分的末端:停在同一个位置就一样大;哪一条停得比较远,哪一个分数就比较大。
例子:10 等份涂 8 份,和 5 等份涂 4 份也对齐 → 8/10 与 4/5 等值。
注意:6/8 的数字比较大,但这不代表它的值比较大。
reading a strip diagram = baca rajah jalur
The two strips are the same length. Do not compare the size of the numbers; compare where the shading ends. Ending at the same place means equal, and the strip whose shading reaches further shows the bigger fraction.
Example: 8 of 10 parts and 4 of 5 parts also line up → 8/10 and 4/5 are equivalent.
Watch out: 6/8 has bigger numbers, but that does not mean it has a bigger value.
Pasangan manakah bukan pecahan setara?
找出不等值的一对 = cari pasangan bukan setara
每一对都检查一次:从第一个分数到第二个分数,分子和分母是不是乘或除了同一个数?如果分子没变、分母却变了,两个分数就不一样大。
例子:3/5 和 3/10 → 只有分母变了 → 不等值。
注意:题目问 bukan,要选不等值的那一对。
spot the pair that is not equivalent = cari pasangan bukan setara
Check each pair: going from the first fraction to the second, were the top and bottom multiplied or divided by the same number? If the numerator stays the same while the denominator changes, the fractions are not equal.
Example: 3/5 and 3/10 → only the bottom changed → not equivalent.
Watch out: the question says bukan, so choose the pair that does not match.
Nadia makan 410 batang tebu. Zul makan 25 batang tebu yang sama panjang. Siapakah makan lebih banyak?
用等值分数比较 = banding dengan pecahan setara
两根甘蔗一样长。把 4/10 化成分母比较小的等值分数,再和 Zul 的分数比较。分母相同时,分子大的吃得多。
例子:Ah Meng 喝了 2/4 瓶水,Siva 喝了同样大小瓶子的 3/4 瓶 → Siva 喝得多。
注意:4/10 的数字比较大,并不表示吃得比较多。
comparing with equivalent fractions = banding dengan pecahan setara
The two sugar canes are the same length. Change 4/10 into an equivalent fraction with a smaller denominator, then compare it with Zul's fraction. With the same denominator, the bigger numerator means more was eaten.
Example: Ah Meng drinks 2/4 of a bottle and Siva drinks 3/4 of the same size bottle → Siva drinks more.
Watch out: bigger numbers in 4/10 do not mean Nadia ate more.
Mei Ling mendarab pengangka dan penyebut bagi 25 dengan 2. Apakah pecahan baharu?
上下同乘 2 = darab atas dan bawah dengan 2
分子和分母都要乘同一个数,两个都要算出来。得到的新分数和 2/5 等值,只是每一份切得更小。
例子:3/4 → 上下都乘 2 → 6/8。
注意:只算分子、忘了分母,是很常见的错误。
times 2 on top and bottom = darab atas dan bawah dengan 2
Multiply both the numerator and the denominator by the same number; both must be worked out. The new fraction is equivalent to 2/5, just with every part cut smaller.
Example: 3/4 → both times 2 → 6/8.
Watch out: working out the top and forgetting the bottom is a very common slip.
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