\(\frac{11}{12}=\frac{2}{3}+\frac{1}{4}\)
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viet phan so nho nhat co tong cua tu so va mau so bang 10
Tim phan so toi gian biet khi cong ca tu va mau cua phan so ay voi mau so cua no ta duoc mot phan so moi lon gap 3 lan phan so ban dau.
GIUP MINH GAP NHOA!!!!!!!!!!!!!!!
bai 1: hay tinh tong cua cac so co 2 chu so khac duoc viet boi cac chu so duoi day: 0, 1, 2
cho tap hop A cac so tu nhien co 2 chu so , biet chu so hang don vi gap doi chu so hang chuc
a, hay liet ke cac phan tu cua tap hop A
b, viet tat ca cac tap hop con cua A co 2 phan tu
c, viet tat ca cac tap hop con cua A cp 3 phan tu
bai 1
a,trong phep chia cho 2 co so du co the bang 0 hoac bang 1 .trong moi phep chia cho 3,cho 4,cho 5,so du co the bang bao nhieu ?
b,dang tong quat cua so chia het cho 2 la 2k ,dang tong quat cua so chia cho 2 du 1 la 2k +1 voi k e N .hay viet dang tong quat cua so chia het cho 3 , so chia cho 3 du 1 ,so chia cho 3 du 2.
viet hai so chia het cho 6. tong cua chung co chia het cho 6 khong viet hai so chia het cho 7 . tong cua chung co chia het cho 7 khong
Tim tat ca cac phan so co tu so la -15 lon hon -3/7 va ho hon 5/8
tim tat ca cac phan so co mau so la 12 lon hon -2/3 va nho hon 1/4
ket qua bai kiem tra mon toan cua khoi 6 co so bai loai gioi chiem 50% tong so bai, so bai loai kha chiem 2/5 tong so bai va con lai 12 bai trung binh. hoi khoi 6 co bao nhieu hoc sinh. Tinh so bai loai gioi , kha. Tinh ty so phan tram so hoc sinh cua loai kha, trung binh so voi ca khoi
Cac ban hoc 24h giup minh giai nha
tinh tong
a, S = 2 + 4 + 6 + .......... + 100
b, Tim so phan tu cua mot tap hop cac so tu nhien co 3 chu so va tinh tong tim duoc