Latihan
Latihan tambahan
6 soalan untuk mengukuhkan unit Tukar Pecahan Tak Wajar dan Nombor Bercampur. Jika salah, baca petunjuk dan cuba lagi.
613 = ?
带分数变假分数 = tukar kepada pecahan tak wajar
题目问这个带分数等于多少个“三分之一”。每个整数 1 有 3 份三分之一,先算出几个整数一共有多少份,再加上分子表示的份数,分母仍然是 3。
例子:6又3/4 → 6 × 4 + 3 = 27 → 27/4。
注意:不要把整数和分子直接相加,那样没有算出整数里的份数。
change to an improper fraction = tukar kepada pecahan tak wajar
The question asks how many thirds are in this mixed number. Each whole holds 3 thirds, so first count the thirds in all the wholes, then add the thirds shown by the numerator. The denominator stays 3.
Example: 6 3/4: 6 × 4 + 3 = 27, so 27/4.
Watch out: adding the whole number to the numerator does not count the parts inside the wholes.
419 = ?
用除法 = gunakan bahagi
把分子除以分母,看分母能装进分子几次:装进的次数就是整数,剩下的数是分子,分母保持不变。最后用乘法和加法倒回去检查。
例子:23/9 → 23 ÷ 9 = 2 余 5 → 2又5/9。
注意:整数和分子不要写反;余数也要记得写成分子。
use division = gunakan bahagi
Divide the numerator by the denominator. The number of times it fits is the whole number, what is left over is the numerator, and the denominator stays the same. Check by multiplying and adding back.
Example: 23/9: 23 ÷ 9 = 2 remainder 5, so 2 5/9.
Watch out: do not swap the whole number and the numerator, and do not forget the remainder.
Pecahan manakah ialah pecahan tak wajar?
认出假分数 = kenal pecahan tak wajar
逐个比较分子和分母:分子比分母小的是真分数;分子等于或大于分母的是假分数;有整数又有分数的是带分数。题目只要假分数。
例子:8/8 和 10/7 都是假分数;4/9 是真分数;2又1/3 是带分数。
注意:带分数也比 1 大,但它的写法不是假分数。
recognise an improper fraction = kenal pecahan tak wajar
Compare the numerator and the denominator of each choice. A smaller numerator means a proper fraction, an equal or bigger numerator means an improper fraction, and a whole number with a fraction is a mixed number.
Example: 8/8 and 10/7 are improper, 4/9 is proper and 2 1/3 is mixed.
Watch out: a mixed number is also more than 1, but it is not written as an improper fraction.
7310 = ?
分母是 10 = penyebut 10
每个整数 1 等于 10 个十分之一。先把整数部分换成十分之几,再把分子加进去,分母仍是 10。分母是 10 时,乘法特别快:整数后面加一个 0 就是份数。
例子:4又9/10 → 40 + 9 = 49 → 49/10。
注意:不要把整数和分子的数字前后调换来写。
a denominator of 10 = penyebut 10
Every whole is 10 tenths. Change the whole number into tenths first, then add the numerator; the denominator stays 10. With tenths the multiplication is quick: the whole number times 10 just gains a zero.
Example: 4 9/10: 40 + 9 = 49, so 49/10.
Watch out: do not swap the digits of the whole number and the numerator.
Sebuah kotak ada 476 kek. Tulis dalam nombor bercampur.
应用 = aplikasi
蛋糕的数量用假分数表示,要改成带分数。用分子除以分母,找出能凑成几个完整的蛋糕,剩下的份数写成分数,分母不变。
例子:25/4 → 25 ÷ 4 = 6 余 1 → 6又1/4 个蛋糕。
注意:算商时要找“不超过分子的最大倍数”,余数算错,分子就错。
applying it = aplikasi
The number of cakes is given as an improper fraction and must be changed into a mixed number. Divide the numerator by the denominator to find how many whole cakes there are; the parts left over become the fraction.
Example: 25/4: 25 ÷ 4 = 6 remainder 1, so 6 1/4 cakes.
Watch out: use the biggest multiple that is not more than the numerator, or the remainder will be wrong.
Siapakah betul? 253 = …
检查答案 = semak jawapan
三个人给了不同的带分数。把每个答案用“整数乘分母再加分子”换回假分数,看哪一个正好等于题目的假分数;同时看分数部分是否比 1 小。
例子:检查 4又2/5:4 × 5 + 2 = 22 → 22/5。
注意:带分数的分数部分一定要比 1 小,否则不是正确的写法。
check the answers = semak jawapan
Three pupils give different mixed numbers. Change each answer back into an improper fraction by multiplying and adding, and see which one equals the fraction in the question. Also check that the fraction part is less than 1.
Example: to check 4 2/5: 4 × 5 + 2 = 22, so 22/5.
Watch out: the fraction part of a mixed number must be less than 1.
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